by | Sep 27, 2025
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART B
Date revised : 07/19/2023
Revision number : 4
TC-277 PART B
1. Identification
Product identifier: TC-277 PART B
Relevant identified uses: Polyurethane curative
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Skin Irritation, Category 2
Eye Irritation, Category 2A
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: WARNING
Hazard statement(s)
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P332+P313: If skin irritation occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P314: Get medical advice/attention if you feel unwell.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Page 1 of 6
Chemical name % w/w CAS No.
Polyether polyol mixture 80 – 100Proprietary
Diethanolamine 1 – 5 111-42-2
Tertiary amine mixture 0.1 – 1Proprietary
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. Seek medical advice/attention if breathing becomes difficult or if respiratory irritation develops.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Page 2 of 6
TC-277 PART B
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
Diethanolamine
OSHA PEL
TWA – –
STEL – –
ACGIH TLV
TWA – –
STEL – –
NIOSH REL
TWA 3 15
STEL – –
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Physical state: Viscous liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: > 100 C (212 F) Pensky-Martens CC
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.03 (water=1) at 25 C (77 F)
Solubility: Partially soluble
Dynamic viscosity: 2250 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Page 3 of 6
TC-277 PART B
Possibility of hazardous reactions: No data available
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Incompatible materials: Isocyanates, oxidizing agents, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name LD50 (oral) mg/kg(rat) LD50 (dermal) mg/kg(rabbit) LC50 (inhalation) mg/l
Polyether polyol mixture No data available No data available No data available
Diethanolamine 300 to 2000 mg/kg Rat No data available No data available
Tertiary amine mixture No data available No data available No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: No data available
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
Diethanolamine 2B
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: No data available
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
Page 4 of 6
TC-277 PART B
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No.
Diethanolamine 1 – 5111-42-2
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
Diethanolamine 1 – 5 100 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
CAA 112(b) Hazardous Air Pollutants
Chemical name % w/wCAS No.
Acrylonitrile < 0.01107-13-1
Occupational safety and health administration (osha)
29 cfr1910.119---process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: WARNING: This product can expose you to chemicals including [see table below], which is [are] known to the
State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Chemical name % w/w Listed
Diethanolamine 1 - 5 Cancer
Styrene < 0.01 Cancer
Acrylonitrile < 0.01 Cancer
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 1
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
1 0
Page 5 of 6
TC-277 PART B
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART B
by | Sep 27, 2025
SAFETY DATA SHEET
Date Issued : 1/11/2011
MSDS No : TC-277 PART B
Date-Revised : 1/13/2014
Revision No : 1
TC-277 PART B
1. PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: TC-277 PART B
GENERAL USE: Polyurethane curative
MANUFACTURER 24 HR. EMERGENCY TELEPHONE NUMBERS
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Customer Service Number: (714) 734-8450
Fax: (714) 734-8929
CHEMTREC (US Transportation): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. HAZARDS IDENTIFICATION
GHS CLASSIFICATIONS
Health:
Eye Irritation, Category 2A
Target Organ Toxicity (Repeated exposure), Category 2
GHS LABEL
Health hazard
SIGNAL WORD: WARNING
HAZARD STATEMENTS
H319: Causes serious eye irritation.
H373: May cause damage to organs through prolonged or repeated exposure .
PRECAUTIONARY STATEMENT(S)
Prevention:
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P314: Get medical advice/attention if you feel unwell.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
EMERGENCY OVERVIEW
PHYSICAL APPEARANCE AND ODOR: Pale yellow viscous liquid with a slight odor.
IMMEDIATE CONCERNS: Avoid eye and skin contact. Avoid breathing vapors. Causes eye irritation. Use in well ventilated areas.
Page 1 of 6
POTENTIAL HEALTH EFFECTS
EYES: Causes serious eye irritation.
SKIN: May cause skin irritation.
INGESTION: May be harmful if swallowed.
INHALATION: May result in respiratory irritation.
MEDICAL CONDITIONS AGGRAVATED: Pre-existing eye conditions may be aggravated by exposure.
ROUTES OF ENTRY: Eye and skin contact, inhalation of vapors, or accidental ingestion.
3. COMPOSITION / INFORMATION ON INGREDIENTS
Chemical Name Wt.% CAS
Polyether polyol mixture 95 – 100Proprietary
Ethanol, 2, 2′-iminobis- 1 – 5 111-42-2
Tertiary amine mixture 0.1 – 1Proprietary
4. FIRST AID MEASURES
EYES: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes.
Get immediate medical attention.
SKIN: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical attention if irritation or rash
develops. Wash clothing before reuse.
INGESTION: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the
patient is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
INHALATION: Remove to fresh air. Seek medical attention if breathing becomes difficult or if respiratory irritation develops.
NOTES TO PHYSICIAN: Symptomatic and supportive therapy as needed. Following severe exposure medical follow-up should be
monitored for at least 48 hours.
5. FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA: Water spray, carbon dioxide, dry chemical, or foam.
HAZARDOUS COMBUSTION PRODUCTS: Carbon monoxide, carbon dioxide, and nitrogen oxides.
FIRE FIGHTING PROCEDURES: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not
release runoff from fire control methods to sewers or waterways.
FIRE FIGHTING EQUIPMENT: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of
unmanned hose holders or monitor nozzles for fighting large fires.
6. ACCIDENTAL RELEASE MEASURES
SMALL SPILL: Evacuate the area. Clean-up should only be performed by trained personnel. People dealing with a major spill should wear
full protective clothing including appropriate respiratory protection. Prevent product spill from entering sewers or waterways. Neutralize
small spills with a decontaminant.
LARGE SPILL: Contain and absorb large spills onto an inert, non-flammable adsorbent carrier (such as earth or sand). Shovel into open-top
drums or plastic bags for further decontamination, if necessary. Wash the spill area clean with a liquid decontaminant. Remove and properly
dispose of residues. Notify applicable government authorities if release is reportable. (See CERCLA in Section 15).
ENVIRONMENTAL PRECAUTIONS
WATER SPILL: Do not discharge into drains or rivers.
GENERAL PROCEDURES: Refer to section 8 of SDS for personal protection details.
RELEASE NOTES: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if
necessary.
7. HANDLING AND STORAGE
Page 2 of 6
TC-277 PART B
GENERAL PROCEDURES: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over
open containers. Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
HANDLING: Use appropriate personal protective equipment as specified in Section 8. Handle in a well ventilated area. Handle and use in a
manner consistent with good industrial/manufacturing techniques and practices.
STORAGE: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid unnecessary contact.
Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
STORAGE TEMPERATURE: 65-80 F (18-27 C)
SHELF LIFE: 6 months from date of shipment under manufacturers recommended storage conditions.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE GUIDELINES
OSHA HAZARDOUS COMPONENTS (29 CFR1910.1200)
EXPOSURE LIMITS
OSHA PEL ACGIH TLV SupplierOEL
Chemical Name ppm mg/m
3
ppm mg/m
3
ppm mg/m
3
Polyether polyol mixture
TWA NE NE NE NE NE NE
STEL NE NE NE NE NE NE
Ethanol, 2, 2′-iminobis-
TWA NE NE NE NE 3
[1]
15
[1]
STEL NE NE NE NE NE NE
Tertiary amine mixture
TWA NE NE NE NE NE NE
STEL NE NE NE NE NE NE
OSHA TABLE COMMENTS:
1. NIOSH REL
ENGINEERING CONTROLS: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
PERSONAL PROTECTIVE EQUIPMENT
EYES AND FACE: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
SKIN: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be used to prevent contact with
eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer maximum protection.
RESPIRATORY: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may be
necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
PROTECTIVE CLOTHING: Protective clothing should be selected and used in accordance with ‘Guidelines for the Selection of Chemical
Protective Clothing’ published by ACGIH.
WORK HYGIENIC PRACTICES: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in
immediate work area should be prohibited. Wash hands before eating.
OTHER USE PRECAUTIONS: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Training is important. Follow all label precautions.
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE: Viscous liquid
ODOR: Slight
COLOR: Pale yellow
Page 3 of 6
TC-277 PART B
pH: Not Established
PERCENT VOLATILE: Nil
FLASHPOINT AND METHOD: > 149 C (300 F) Open Cup
VAPOR PRESSURE: Not Established
VAPOR DENSITY: Not Established
BOILING POINT: Not Established
SOLUBILITY IN WATER: Partially Soluble
SPECIFIC GRAVITY: 1.03 (water=1) at 25 C (77 F)
VISCOSITY: 2250 Centipoise at 25 C (77 F)
VOC (Volatile Organic Compound): Nil
10. STABILITY AND REACTIVITY
STABILITY: This product is stable under normal ambient conditions of temperature and pressure.
POLYMERIZATION: Product will not undergo polymerization.
CONDITIONS TO AVOID: High temperatures, moisture, and freezing conditions.
POSSIBILITY OF HAZARDOUS REACTIONS: Hazardous reactions will not occur under normal transport or storage conditions.
HAZARDOUS DECOMPOSITION PRODUCTS: Carbon monoxide, carbon dioxide, and nitrogen oxides.
INCOMPATIBLE MATERIALS: Isocyanates, oxidizing agents, bases, and acids.
11. TOXICOLOGICAL INFORMATION
TOXICITY TO ANIMALS
Chemical Name
ORAL LD50
(rat)
DERMAL LD50
(rabbit)
INHALATION
LC
50 (rat)
Polyether polyol mixture Not Established Not Established Not Established
Ethanol, 2, 2′-iminobis-
700 to 2800
mg/kg
> 5000 mg/kg Not Established
Tertiary amine mixture Not Established Not Established Not Established
CARCINOGENICITY
Chemical Name
IARC
Status
Ethanol, 2, 2′-iminobis- 2B
IARC: This product contains substances that are classified as possible carcinogens to humans.
IRRITATION: Causes eye irritation.
12. ECOLOGICAL INFORMATION
ENVIRONMENTAL DATA: No data available.
ECOTOXICOLOGICAL INFORMATION: No specific ecological data are available for this product. Refer to Section 6 for information
regarding accidental release and Section 15 for regulatory reporting information.
BIOACCUMULATION/ACCUMULATION: No data available.
DISTRIBUTION: No data available.
CHEMICAL FATE INFORMATION: No data available.
13. DISPOSAL CONSIDERATIONS
DISPOSAL METHOD: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain
Page 4 of 6
TC-277 PART B
some product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via
a licensed waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements
of environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material
and runoff and contact with soil, waterways, drains and sewers.
14. TRANSPORT INFORMATION
DOT (DEPARTMENT OF TRANSPORTATION) LAND: Not Regulated
AIR (ICAO/IATA): Not Regulated
VESSEL (IMO/IMDG): Not Regulated
15. REGULATORY INFORMATION
UNITED STATES
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZ ATION ACT)
311/312 HAZARD CATEGORIES: Acute health hazard
313 REPORTABLE INGREDIENTS: This product contains the following substances subject to the reporting requirements of Section
313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA SECTION 313 SUPPLIER NOTIFICATION
Chemical Name Wt.% CAS
Ethanol, 2, 2′-iminobis- 1 – 5111-42-2
CERCLA (COMPREHENSIVE RESPONSE, COMPENSATION, AND L IABILITY ACT)
CERCLA REGULATORY: For this/these chemicals, release of more than the Reportable Quantity to the environment in a 24-hour
period requires notification to the National Response Center (800-424-8802 or 202-426-2675):
Chemical Name Wt.%
CERCLA
RQ
Ethanol, 2, 2′-iminobis- 1 – 5100 lbs.
TSCA (TOXIC SUBSTANCE CONTROL ACT)
TSCA REGULATORY: This product contains chemical(s) subject to TSCA Section 12(b) export notification:
None
TSCA STATUS: This product or its components are listed in or exempt from the TSCA inventory requirements.
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA )
29 CFR1910.119—PROCESS SAFETY MANAGEMENT OF HIGHL Y HAZARDOUS CHEMICALS: None of the chemicals in
this product are considered highly hazardous by OSHA.
CALIFORNIA PROPOSITION 65: This product contains chemical(s) which are known to the State of California to cause cancer, birth
defects or other reproductive harm, and may be subject to the requirements of California Proposition 65 (CA Health & Safety Code
Section 25249.5):
Chemical Name Wt.% Listed
Ethanol, 2, 2′-iminobis- 1 – 5 Cancer
OSHA HAZARD COMM. RULE: The contents of the SDS comply with the OSHA Hazard Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS HAZARD SYMBOL AND CLASSIFICATION
Page 5 of 6
TC-277 PART B
D2A – Very
Toxic
D2B – Toxic
WHMIS CLASSIFICATION
Class D2A: Poisonous and infectious material (Very toxic).
Class D2B: Poisonous and infectious material (Toxic).
WHMIS HEALTH EFFECTS CRITERIA
D2A – Carcinogenicity
D2B – Eye irritation
WHMIS (WORKPLACE HAZARDOUS MATERIALS INFORMATION SY STEM): This product has been classified according to the
hazard criteria of the CPR and the MSDS contains all the information required by the CPR.
DOMESTIC SUBSTANCE LIST (INVENTORY): All components in this product are listed in or exempted from the Domestic
Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. OTHER INFORMATION
REASON FOR ISSUE: Revision
REVISION SUMMARY: This MSDS replaces the 1/11/2011 MSDS.
HMIS RATING
HEALTH 1
FLAMMABILITY 1
PHYSICAL HAZARD 0
PERSONAL PROTECTION X
NFPA CODES
1
1 0
HMIS RATINGS NOTES: Personal Protection: See Section 8
MANUFACTURER DISCLAIMER: This information is furnished without warranty, expressed or implied, except that is accurate to the best
knowledge of BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc.
assumes no legal responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART B
by | Sep 27, 2025
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART A
Date revised : 07/19/2023
Revision number : 4
TC-277 PART A
1. Identification
Product identifier: TC-277 PART A
Relevant identified uses: Polyurethane resin
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Acute Toxicity (Inhalation), Category 4
Skin Irritation, Category 2
Eye Irritation, Category 2A
Respiratory Sensitization, Category 1
Skin Sensitization, Category 1
Carcinogenicity, Category 2
Target Organ Toxicity (Single exposure), Category 3
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: DANGER
Hazard statement(s)
H332: Harmful if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H351: Suspected of causing cancer.
H335: May cause respiratory irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: In case of inadequate ventilation wear respiratory protection.
P264: Wash thoroughly after handling.
Page 1 of 6
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/physician.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P308+P313: IF exposed or concerned: Get medical advice/ attention.
Storage:
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Chemical name % w/wCAS No.
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer 10 – 3025686-28-6
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1), polymer with 1,1′-methylenebis[4-
isocyanatobenzene]
10 – 3059675-67-1
2,6-di-tert-butyl-p-cresol 0.1 – 1128-37-0
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial respiration or oxygen by
trained personnel. Get immediate medical attention.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
Page 2 of 6
TC-277 PART A
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
4,4′-Diphenylmethane diisocyanate
OSHA PEL C 0.02 0.2
ACGIH TLV TWA 0.005 –
NIOSH REL
TWA 0.005 0.05
C 0.02
[1]
0.2
[1]
2,6-di-tert-butyl-p-cresol NIOSH REL TWA – 10
Footnotes:
1. 10-minute
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Page 3 of 6
TC-277 PART A
Physical state: Liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: 230 C (446 F) Open Cup
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.15 (water=1) at 25 C (77 F)
Solubility: Reacts slowly with water
Dynamic viscosity: 425 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Possibility of hazardous reactions: Reaction with water produces carbon dioxide. Exothermic reaction with materials containing active hydrogen
groups. The reaction becomes progressively more vigorous and can be violent at higher temperatures if the miscibility of the reaction partners is
good or is supported by stirring or by the presence of solvents. MDI is insoluble with, and heavier than water and sinks to the bottom but reacts
slowly at the interface. A solid water-insoluble layer of polyurea is formed at the interface by liberating carbon dioxide gas.
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Incompatible materials: Water, alcohols, amines, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name
LD50 (oral)
mg/kg(rat)
LD50 (dermal)
mg/kg(rabbit)
LC50 (inhalation)
mg/l
4,4′-Diphenylmethane diisocyanate
> 2000 mg/kg
Rat
> 9400 mg/kg
Rabbit
2.24 mg/l Rat (1 h,
dust/mist)
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer
> 5000 mg/kg
Rat
No data available 0.49 mg/l Rat
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1),
polymer with 1,1′-methylenebis[4-isocyanatobenzene]
No data
available
No data available No data available
2,6-di-tert-butyl-p-cresol
> 2900 mg/kg
Rat
> 2000 mg/kg Rat No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: May cause sensitization by inhalation and skin contact.
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
4,4′-Diphenylmethane diisocyanate 3
2,6-di-tert-butyl-p-cresol 3
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: May cause respiratory irritation.
Page 4 of 6
TC-277 PART A
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No. Comments
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8Diisocyanate Compounds (Category Code N120)
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
4,4′-Diphenylmethane diisocyanate 30 – 60 5,000 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
Occupational safety and health administration (osha)
29 cfr1910.119—process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: This product does not contain any chemicals which are known to the State of California to cause cancer, birth
defects or other reproductive harm.
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
Page 5 of 6
TC-277 PART A
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 2
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
2 0
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART A
by | Sep 27, 2025
SAFETY DATA SHEET
Date Issued : 1/11/2011
MSDS No : TC-277 PART A
Date-Revised : 1/13/2014
Revision No : 1
TC-277 PART A
1. PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: TC-277 PART A
GENERAL USE: Polyurethane resin
MANUFACTURER 24 HR. EMERGENCY TELEPHONE NUMBERS
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Customer Service Number: (714) 734-8450
Fax: (714) 734-8929
CHEMTREC (US Transportation): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. HAZARDS IDENTIFICATION
GHS CLASSIFICATIONS
Health:
Acute Toxicity (Inhalation), Category 4
Skin Irritation, Category 2
Eye Irritation, Category 2A
Respiratory Sensitization, Category 1
Skin Sensitization, Category 1
Carcinogenicity, Category 2
Target Organ Toxicity (Single exposure), Category 3
Target Organ Toxicity (Repeated exposure), Category 2
GHS LABEL
Health hazard
SIGNAL WORD: DANGER
HAZARD STATEMENTS
H332: Harmful if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H351: Suspected of causing cancer .
H335: May cause respiratory irritation.
H373: May cause damage to organs through prolonged or repeated exposure .
PRECAUTIONARY STATEMENT(S)
Prevention:
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
Page 1 of 7
P285: In case of inadequate ventilation wear respiratory protection.
P264: Wash thoroughly after handling.
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P304+P341: IF INHALED: If breathing is difficult, remove to fresh air and keep at rest in a position comfortable for breathing.
P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P321: Specific treatment (see on this label).
P362: Take off contaminated clothing and wash before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P308+P313: IF exposed or concerned: Get medical advice/attention.
Storage:
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
EMERGENCY OVERVIEW
PHYSICAL APPEARANCE AND ODOR: Pale yellow liquid with a slight musty odor.
IMMEDIATE CONCERNS: Harmful by inhalation. Use in well ventilated areas. Irritating to eyes, skin, and respiratory system. May cause
sensitization by inhalation and skin contact. This product is a respiratory irritant and potential respiratory sensitizer. Repeated inhalation of
vapour or aerosol at levels above the occupational exposure limit could cause respiratory sensitization. A hyper-reactive response to even
minimal concentrations of diisocyanates may develop in sensitized persons. The onset of the respiratory symptoms may be delayed for
several hours after exposure.
Reacts slowly with water to produce carbon dioxide which may rupture closed containers. This reaction accelerates at higher temperatures.
Do not breathe vapor or mist. Do not get on skin or clothing. Avoid contact with eyes. Use only with adequate ventilation. Keep container
tightly closed and sealed until ready for use. Wash thoroughly after handling.
POTENTIAL HEALTH EFFECTS
EYES: Causes serious eye irritation.
SKIN: Causes skin irritation. May cause an allergic skin reaction.
INGESTION: May be harmful if swallowed.
INHALATION: Harmful if inhaled. Inhalation at levels above the occupational exposure limit could cause respiratory sensitization and risk
of serious damage to the respiratory system.
MEDICAL CONDITIONS AGGRAVATED: Pre-existing eye, skin, and respiratory conditions may be aggravated by exposure.
ROUTES OF ENTRY: Eye and skin contact, inhalation of vapors, or accidental ingestion.
TARGET ORGANS: Contains material which causes damage to the following organs: upper respiratory tract.
SENSITIZATION: May cause allergic skin and respiratory reaction.
3. COMPOSITION / INFORMATION ON INGREDIENTS
Chemical Name Wt.% CAS
4,4′-Diphenylmethane diisocyanate 50 – 60101-68-8
benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer 40 – 5025686-28-6
4. FIRST AID MEASURES
EYES: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes.
Get immediate medical attention.
Page 2 of 7
TC-277 PART A
SKIN: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical attention if irritation or rash
develops. Wash clothing before reuse.
INGESTION: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the
patient is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
INHALATION: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get immediate medical
attention.
NOTES TO PHYSICIAN: Symptomatic and supportive therapy as needed. Following severe exposure medical follow-up should be
monitored for at least 48 hours.
5. FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA: Use a suitable extinguishing agent for the surrounding fire.
HAZARDOUS COMBUSTION PRODUCTS: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons and HCN.
EXPLOSION HAZARDS: Material will react with water which produces carbon dioxide gas, a hazardous build-up of pressure could result if
contaminated containers are re-sealed. Containers may rupture if overheated.
FIRE FIGHTING PROCEDURES: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not
release runoff from fire control methods to sewers or waterways.
FIRE FIGHTING EQUIPMENT: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of
unmanned hose holders or monitor nozzles for fighting large fires.
6. ACCIDENTAL RELEASE MEASURES
SMALL SPILL: Evacuate the area. Clean-up should only be performed by trained personnel. People dealing with a major spill should wear
full protective clothing including appropriate respiratory protection. Prevent product spill from entering sewers or waterways. Neutralize
small spills with a decontaminant.
LARGE SPILL: Contain and absorb large spills onto an inert, non-flammable adsorbent carrier (such as earth or sand). Shovel into open-top
drums or plastic bags for further decontamination, if necessary. Wash the spill area clean with a liquid decontaminant. Remove and properly
dispose of residues. Notify applicable government authorities if release is reportable. (See CERCLA in Section 15).
ENVIRONMENTAL PRECAUTIONS
WATER SPILL: Do not discharge into drains or rivers.
GENERAL PROCEDURES: Refer to section 8 of SDS for personal protection details.
RELEASE NOTES: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if
necessary.
7. HANDLING AND STORAGE
GENERAL PROCEDURES: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over
open containers. Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
HANDLING: Use appropriate personal protective equipment as specified in Section 8. Handle in a well ventilated area. Handle and use in a
manner consistent with good industrial/manufacturing techniques and practices.
STORAGE: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid unnecessary contact.
Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
STORAGE TEMPERATURE: 65-80 F (18-27 C)
SHELF LIFE: 6 months from date of shipment under manufacturers recommended storage conditions.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Page 3 of 7
TC-277 PART A
EXPOSURE GUIDELINES
OSHA HAZARDOUS COMPONENTS (29 CFR1910.1200)
EXPOSURE LIMITS
OSHA PEL ACGIH TLV SupplierOEL
Chemical Name ppm mg/m
3
ppm mg/m
3
ppm mg/m
3
4,4′-Diphenylmethane diisocyanate
TWA 0.02 0.2 0.005 0.05 0.005
[1]
0.05
[1]
STEL NE NE NE NE NE NE
benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer
TWA NE NE NE NE NE NE
STEL NE NE NE NE NE NE
OSHA TABLE COMMENTS:
1. NIOSH REL
ENGINEERING CONTROLS: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
PERSONAL PROTECTIVE EQUIPMENT
EYES AND FACE: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
SKIN: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be used to prevent contact with
eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer maximum protection.
RESPIRATORY: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may be
necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
PROTECTIVE CLOTHING: Protective clothing should be selected and used in accordance with ‘Guidelines for the Selection of Chemical
Protective Clothing’ published by ACGIH.
WORK HYGIENIC PRACTICES: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in
immediate work area should be prohibited. Wash hands before eating.
OTHER USE PRECAUTIONS: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Training is important. Follow all label precautions.
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE: Liquid
ODOR: Slightly musty
COLOR: Pale yellow
pH: Not Applicable
PERCENT VOLATILE: Nil
FLASHPOINT AND METHOD: 230 C (446 F) Open Cup
VAPOR PRESSURE: Not Established
VAPOR DENSITY: 8.5
BOILING POINT: > 300 C (572 F) Decomposes
SOLUBILITY IN WATER: Reacts slowly with water
SPECIFIC GRAVITY: 1.15 (water=1) at 25 C (77 F)
VISCOSITY: 425 Centipoise at 25 C (77 F)
VOC (Volatile Organic Compound): Nil
10. STABILITY AND REACTIVITY
STABILITY: This product is stable under normal ambient conditions of temperature and pressure.
Page 4 of 7
TC-277 PART A
POLYMERIZATION: May occur when exposed to heat in the presence of moisture, alkalies, tertiary amines, metal compounds.
CONDITIONS TO AVOID: High temperatures, moisture, and freezing conditions.
POSSIBILITY OF HAZARDOUS REACTIONS: Hazardous reactions will not occur under normal transport or storage conditions.
HAZARDOUS DECOMPOSITION PRODUCTS: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbon and HCN.
INCOMPATIBLE MATERIALS: Water, alcohols, amines, bases, and acids.
11. TOXICOLOGICAL INFORMATION
TOXICITY TO ANIMALS
Chemical Name
ORAL LD50
(rat)
DERMAL LD50
(rabbit)
INHALATION
LC
50 (rat)
4,4′-Diphenylmethane diisocyanate > 10000 mg/kg > 9400 mg/kg 0.49 mg/l (4 h)
benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer Not Established Not Established Not Established
CHRONIC EFFECTS: Contains material that can cause target organ damage. Once sensitized, a severe allergic reaction may occur when
subsequently exposed to very low levels.
CARCINOGENICITY
Chemical Name
IARC
Status
4,4′-Diphenylmethane diisocyanate 3
IARC: This product contains substances that are not classifiable as carcinogens to humans.
IRRITATION: Causes eye, skin, and respiratory irritation.
SENSITIZATION: May cause sensitization by inhalation and skin contact.
TARGET ORGANS: Contains material which causes damage to the following organs: upper respiratory tract.
12. ECOLOGICAL INFORMATION
ENVIRONMENTAL DATA: No data available.
ECOTOXICOLOGICAL INFORMATION: No specific ecological data are available for this product. Refer to Section 6 for information
regarding accidental release and Section 15 for regulatory reporting information.
BIOACCUMULATION/ACCUMULATION: No data available.
DISTRIBUTION: No data available.
CHEMICAL FATE INFORMATION: No data available.
13. DISPOSAL CONSIDERATIONS
DISPOSAL METHOD: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain
some product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via
a licensed waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements
of environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material
and runoff and contact with soil, waterways, drains and sewers.
14. TRANSPORT INFORMATION
DOT (DEPARTMENT OF TRANSPORTATION) LAND: Not Regulated
AIR (ICAO/IATA): Not Regulated
VESSEL (IMO/IMDG): Not Regulated
15. REGULATORY INFORMATION
UNITED STATES
Page 5 of 7
TC-277 PART A
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZ ATION ACT)
311/312 HAZARD CATEGORIES: Acute health hazard. Chronic health hazard
313 REPORTABLE INGREDIENTS: This product contains the following substances subject to the reporting requirements of Section
313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA SECTION 313 SUPPLIER NOTIFICATION
Chemical Name Wt.% CAS Comments
4,4′-Diphenylmethane diisocyanate 50 – 60101-68-8Diisocyanate Compounds (Category Code N120)
CERCLA (COMPREHENSIVE RESPONSE, COMPENSATION, AND L IABILITY ACT)
CERCLA REGULATORY: For this/these chemicals, release of more than the Reportable Quantity to the environment in a 24-hour
period requires notification to the National Response Center (800-424-8802 or 202-426-2675):
Chemical Name Wt.%
CERCLA
RQ
4,4′-Diphenylmethane diisocyanate 50 – 605,000 lbs.
TSCA (TOXIC SUBSTANCE CONTROL ACT)
TSCA REGULATORY: This product contains chemical(s) subject to TSCA Section 12(b) export notification:
None
TSCA STATUS: This product or its components are listed in or exempt from the TSCA inventory requirements.
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA )
29 CFR1910.119—PROCESS SAFETY MANAGEMENT OF HIGHL Y HAZARDOUS CHEMICALS: None of the chemicals in
this product are considered highly hazardous by OSHA.
CALIFORNIA PROPOSITION 65: This product contains chemical(s) which are known to the State of California to cause cancer, birth
defects or other reproductive harm, and may be subject to the requirements of California Proposition 65 (CA Health & Safety Code
Section 25249.5):
None
OSHA HAZARD COMM. RULE: The contents of the SDS comply with the OSHA Hazard Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS HAZARD SYMBOL AND CLASSIFICATION
D1A – Very
Toxic
D2A – Very
Toxic
D2B – Toxic
Class D1A: Poisonous and infectious material (Very toxic).
Class D2A: Poisonous and infectious material (Very toxic).
Class D2B: Poisonous and infectious material (Toxic).
WHMIS HEALTH EFFECTS CRITERIA
D1A – Acute lethality
D2A – Respiratory tract sensitization
D2B – Skin irritation
D2B – Skin Sensitization
WHMIS (WORKPLACE HAZARDOUS MATERIALS INFORMATION SY STEM): This product has been classified according to the
hazard criteria of the CPR and the MSDS contains all the information required by the CPR.
WHMIS CLASS: The D1A classification applies for this material in aerosol or mist form.
DOMESTIC SUBSTANCE LIST (INVENTORY): All components in this product are listed in or exempted from the Domestic
Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. OTHER INFORMATION
Page 6 of 7
TC-277 PART A
REASON FOR ISSUE: Revision
REVISION SUMMARY: This MSDS replaces the 1/11/2011 MSDS.
HMIS RATING
HEALTH * 2
FLAMMABILITY 1
PHYSICAL HAZARD 1
PERSONAL PROTECTION X
NFPA CODES
1
2 1
HMIS RATINGS NOTES: Personal Protection: See Section 8
MANUFACTURER DISCLAIMER: This information is furnished without warranty, expressed or implied, except that is accurate to the best
knowledge of BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc.
assumes no legal responsibility for use or reliance upon this data.
Page 7 of 7
TC-277 PART A
by | Sep 27, 2025
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART A
Date revised : 07/19/2023
Revision number : 4
TC-277 PART A
1. Identification
Product identifier: TC-277 PART A
Relevant identified uses: Polyurethane resin
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Acute Toxicity (Inhalation), Category 4
Skin Irritation, Category 2
Eye Irritation, Category 2A
Respiratory Sensitization, Category 1
Skin Sensitization, Category 1
Carcinogenicity, Category 2
Target Organ Toxicity (Single exposure), Category 3
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: DANGER
Hazard statement(s)
H332: Harmful if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H351: Suspected of causing cancer.
H335: May cause respiratory irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: In case of inadequate ventilation wear respiratory protection.
P264: Wash thoroughly after handling.
Page 1 of 6
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/physician.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P308+P313: IF exposed or concerned: Get medical advice/ attention.
Storage:
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Chemical name % w/wCAS No.
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer 10 – 3025686-28-6
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1), polymer with 1,1′-methylenebis[4-
isocyanatobenzene]
10 – 3059675-67-1
2,6-di-tert-butyl-p-cresol 0.1 – 1128-37-0
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial respiration or oxygen by
trained personnel. Get immediate medical attention.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
Page 2 of 6
TC-277 PART A
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
4,4′-Diphenylmethane diisocyanate
OSHA PEL C 0.02 0.2
ACGIH TLV TWA 0.005 –
NIOSH REL
TWA 0.005 0.05
C 0.02
[1]
0.2
[1]
2,6-di-tert-butyl-p-cresol NIOSH REL TWA – 10
Footnotes:
1. 10-minute
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Page 3 of 6
TC-277 PART A
Physical state: Liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: 230 C (446 F) Open Cup
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.15 (water=1) at 25 C (77 F)
Solubility: Reacts slowly with water
Dynamic viscosity: 425 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Possibility of hazardous reactions: Reaction with water produces carbon dioxide. Exothermic reaction with materials containing active hydrogen
groups. The reaction becomes progressively more vigorous and can be violent at higher temperatures if the miscibility of the reaction partners is
good or is supported by stirring or by the presence of solvents. MDI is insoluble with, and heavier than water and sinks to the bottom but reacts
slowly at the interface. A solid water-insoluble layer of polyurea is formed at the interface by liberating carbon dioxide gas.
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Incompatible materials: Water, alcohols, amines, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name
LD50 (oral)
mg/kg(rat)
LD50 (dermal)
mg/kg(rabbit)
LC50 (inhalation)
mg/l
4,4′-Diphenylmethane diisocyanate
> 2000 mg/kg
Rat
> 9400 mg/kg
Rabbit
2.24 mg/l Rat (1 h,
dust/mist)
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer
> 5000 mg/kg
Rat
No data available 0.49 mg/l Rat
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1),
polymer with 1,1′-methylenebis[4-isocyanatobenzene]
No data
available
No data available No data available
2,6-di-tert-butyl-p-cresol
> 2900 mg/kg
Rat
> 2000 mg/kg Rat No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: May cause sensitization by inhalation and skin contact.
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
4,4′-Diphenylmethane diisocyanate 3
2,6-di-tert-butyl-p-cresol 3
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: May cause respiratory irritation.
Page 4 of 6
TC-277 PART A
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No. Comments
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8Diisocyanate Compounds (Category Code N120)
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
4,4′-Diphenylmethane diisocyanate 30 – 60 5,000 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
Occupational safety and health administration (osha)
29 cfr1910.119—process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: This product does not contain any chemicals which are known to the State of California to cause cancer, birth
defects or other reproductive harm.
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
Page 5 of 6
TC-277 PART A
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 2
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
2 0
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART A
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART B
Date revised : 07/19/2023
Revision number : 4
TC-277 PART B
1. Identification
Product identifier: TC-277 PART B
Relevant identified uses: Polyurethane curative
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Skin Irritation, Category 2
Eye Irritation, Category 2A
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: WARNING
Hazard statement(s)
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P332+P313: If skin irritation occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P314: Get medical advice/attention if you feel unwell.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Page 1 of 6
Chemical name % w/w CAS No.
Polyether polyol mixture 80 – 100Proprietary
Diethanolamine 1 – 5 111-42-2
Tertiary amine mixture 0.1 – 1Proprietary
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. Seek medical advice/attention if breathing becomes difficult or if respiratory irritation develops.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Page 2 of 6
TC-277 PART B
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
Diethanolamine
OSHA PEL
TWA – –
STEL – –
ACGIH TLV
TWA – –
STEL – –
NIOSH REL
TWA 3 15
STEL – –
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Physical state: Viscous liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: > 100 C (212 F) Pensky-Martens CC
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.03 (water=1) at 25 C (77 F)
Solubility: Partially soluble
Dynamic viscosity: 2250 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Page 3 of 6
TC-277 PART B
Possibility of hazardous reactions: No data available
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Incompatible materials: Isocyanates, oxidizing agents, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name LD50 (oral) mg/kg(rat) LD50 (dermal) mg/kg(rabbit) LC50 (inhalation) mg/l
Polyether polyol mixture No data available No data available No data available
Diethanolamine 300 to 2000 mg/kg Rat No data available No data available
Tertiary amine mixture No data available No data available No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: No data available
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
Diethanolamine 2B
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: No data available
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
Page 4 of 6
TC-277 PART B
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No.
Diethanolamine 1 – 5111-42-2
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
Diethanolamine 1 – 5 100 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
CAA 112(b) Hazardous Air Pollutants
Chemical name % w/wCAS No.
Acrylonitrile < 0.01107-13-1
Occupational safety and health administration (osha)
29 cfr1910.119---process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: WARNING: This product can expose you to chemicals including [see table below], which is [are] known to the
State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Chemical name % w/w Listed
Diethanolamine 1 - 5 Cancer
Styrene < 0.01 Cancer
Acrylonitrile < 0.01 Cancer
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 1
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
1 0
Page 5 of 6
TC-277 PART B
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART B
by | Sep 27, 2025
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART A
Date revised : 07/19/2023
Revision number : 4
TC-277 PART A
1. Identification
Product identifier: TC-277 PART A
Relevant identified uses: Polyurethane resin
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Acute Toxicity (Inhalation), Category 4
Skin Irritation, Category 2
Eye Irritation, Category 2A
Respiratory Sensitization, Category 1
Skin Sensitization, Category 1
Carcinogenicity, Category 2
Target Organ Toxicity (Single exposure), Category 3
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: DANGER
Hazard statement(s)
H332: Harmful if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H351: Suspected of causing cancer.
H335: May cause respiratory irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: In case of inadequate ventilation wear respiratory protection.
P264: Wash thoroughly after handling.
Page 1 of 6
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/physician.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P308+P313: IF exposed or concerned: Get medical advice/ attention.
Storage:
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Chemical name % w/wCAS No.
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer 10 – 3025686-28-6
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1), polymer with 1,1′-methylenebis[4-
isocyanatobenzene]
10 – 3059675-67-1
2,6-di-tert-butyl-p-cresol 0.1 – 1128-37-0
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial respiration or oxygen by
trained personnel. Get immediate medical attention.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
Page 2 of 6
TC-277 PART A
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
4,4′-Diphenylmethane diisocyanate
OSHA PEL C 0.02 0.2
ACGIH TLV TWA 0.005 –
NIOSH REL
TWA 0.005 0.05
C 0.02
[1]
0.2
[1]
2,6-di-tert-butyl-p-cresol NIOSH REL TWA – 10
Footnotes:
1. 10-minute
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Page 3 of 6
TC-277 PART A
Physical state: Liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: 230 C (446 F) Open Cup
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.15 (water=1) at 25 C (77 F)
Solubility: Reacts slowly with water
Dynamic viscosity: 425 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Possibility of hazardous reactions: Reaction with water produces carbon dioxide. Exothermic reaction with materials containing active hydrogen
groups. The reaction becomes progressively more vigorous and can be violent at higher temperatures if the miscibility of the reaction partners is
good or is supported by stirring or by the presence of solvents. MDI is insoluble with, and heavier than water and sinks to the bottom but reacts
slowly at the interface. A solid water-insoluble layer of polyurea is formed at the interface by liberating carbon dioxide gas.
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Incompatible materials: Water, alcohols, amines, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name
LD50 (oral)
mg/kg(rat)
LD50 (dermal)
mg/kg(rabbit)
LC50 (inhalation)
mg/l
4,4′-Diphenylmethane diisocyanate
> 2000 mg/kg
Rat
> 9400 mg/kg
Rabbit
2.24 mg/l Rat (1 h,
dust/mist)
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer
> 5000 mg/kg
Rat
No data available 0.49 mg/l Rat
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1),
polymer with 1,1′-methylenebis[4-isocyanatobenzene]
No data
available
No data available No data available
2,6-di-tert-butyl-p-cresol
> 2900 mg/kg
Rat
> 2000 mg/kg Rat No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: May cause sensitization by inhalation and skin contact.
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
4,4′-Diphenylmethane diisocyanate 3
2,6-di-tert-butyl-p-cresol 3
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: May cause respiratory irritation.
Page 4 of 6
TC-277 PART A
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No. Comments
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8Diisocyanate Compounds (Category Code N120)
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
4,4′-Diphenylmethane diisocyanate 30 – 60 5,000 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
Occupational safety and health administration (osha)
29 cfr1910.119—process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: This product does not contain any chemicals which are known to the State of California to cause cancer, birth
defects or other reproductive harm.
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
Page 5 of 6
TC-277 PART A
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 2
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
2 0
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART A
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART B
Date revised : 07/19/2023
Revision number : 4
TC-277 PART B
1. Identification
Product identifier: TC-277 PART B
Relevant identified uses: Polyurethane curative
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Skin Irritation, Category 2
Eye Irritation, Category 2A
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: WARNING
Hazard statement(s)
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P332+P313: If skin irritation occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P314: Get medical advice/attention if you feel unwell.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Page 1 of 6
Chemical name % w/w CAS No.
Polyether polyol mixture 80 – 100Proprietary
Diethanolamine 1 – 5 111-42-2
Tertiary amine mixture 0.1 – 1Proprietary
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. Seek medical advice/attention if breathing becomes difficult or if respiratory irritation develops.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Page 2 of 6
TC-277 PART B
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
Diethanolamine
OSHA PEL
TWA – –
STEL – –
ACGIH TLV
TWA – –
STEL – –
NIOSH REL
TWA 3 15
STEL – –
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Physical state: Viscous liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: > 100 C (212 F) Pensky-Martens CC
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.03 (water=1) at 25 C (77 F)
Solubility: Partially soluble
Dynamic viscosity: 2250 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Page 3 of 6
TC-277 PART B
Possibility of hazardous reactions: No data available
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Incompatible materials: Isocyanates, oxidizing agents, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name LD50 (oral) mg/kg(rat) LD50 (dermal) mg/kg(rabbit) LC50 (inhalation) mg/l
Polyether polyol mixture No data available No data available No data available
Diethanolamine 300 to 2000 mg/kg Rat No data available No data available
Tertiary amine mixture No data available No data available No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: No data available
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
Diethanolamine 2B
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: No data available
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
Page 4 of 6
TC-277 PART B
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No.
Diethanolamine 1 – 5111-42-2
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
Diethanolamine 1 – 5 100 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
CAA 112(b) Hazardous Air Pollutants
Chemical name % w/wCAS No.
Acrylonitrile < 0.01107-13-1
Occupational safety and health administration (osha)
29 cfr1910.119---process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: WARNING: This product can expose you to chemicals including [see table below], which is [are] known to the
State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Chemical name % w/w Listed
Diethanolamine 1 - 5 Cancer
Styrene < 0.01 Cancer
Acrylonitrile < 0.01 Cancer
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 1
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
1 0
Page 5 of 6
TC-277 PART B
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART B
by | Sep 27, 2025
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART A
Date revised : 07/19/2023
Revision number : 4
TC-277 PART A
1. Identification
Product identifier: TC-277 PART A
Relevant identified uses: Polyurethane resin
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Acute Toxicity (Inhalation), Category 4
Skin Irritation, Category 2
Eye Irritation, Category 2A
Respiratory Sensitization, Category 1
Skin Sensitization, Category 1
Carcinogenicity, Category 2
Target Organ Toxicity (Single exposure), Category 3
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: DANGER
Hazard statement(s)
H332: Harmful if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H351: Suspected of causing cancer.
H335: May cause respiratory irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: In case of inadequate ventilation wear respiratory protection.
P264: Wash thoroughly after handling.
Page 1 of 6
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/physician.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P308+P313: IF exposed or concerned: Get medical advice/ attention.
Storage:
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Chemical name % w/wCAS No.
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer 10 – 3025686-28-6
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1), polymer with 1,1′-methylenebis[4-
isocyanatobenzene]
10 – 3059675-67-1
2,6-di-tert-butyl-p-cresol 0.1 – 1128-37-0
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial respiration or oxygen by
trained personnel. Get immediate medical attention.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
Page 2 of 6
TC-277 PART A
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
4,4′-Diphenylmethane diisocyanate
OSHA PEL C 0.02 0.2
ACGIH TLV TWA 0.005 –
NIOSH REL
TWA 0.005 0.05
C 0.02
[1]
0.2
[1]
2,6-di-tert-butyl-p-cresol NIOSH REL TWA – 10
Footnotes:
1. 10-minute
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Page 3 of 6
TC-277 PART A
Physical state: Liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: 230 C (446 F) Open Cup
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.15 (water=1) at 25 C (77 F)
Solubility: Reacts slowly with water
Dynamic viscosity: 425 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Possibility of hazardous reactions: Reaction with water produces carbon dioxide. Exothermic reaction with materials containing active hydrogen
groups. The reaction becomes progressively more vigorous and can be violent at higher temperatures if the miscibility of the reaction partners is
good or is supported by stirring or by the presence of solvents. MDI is insoluble with, and heavier than water and sinks to the bottom but reacts
slowly at the interface. A solid water-insoluble layer of polyurea is formed at the interface by liberating carbon dioxide gas.
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
Incompatible materials: Water, alcohols, amines, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name
LD50 (oral)
mg/kg(rat)
LD50 (dermal)
mg/kg(rabbit)
LC50 (inhalation)
mg/l
4,4′-Diphenylmethane diisocyanate
> 2000 mg/kg
Rat
> 9400 mg/kg
Rabbit
2.24 mg/l Rat (1 h,
dust/mist)
Benzene, 1,1′-methylenebis[4-isocyanato-, homopolymer
> 5000 mg/kg
Rat
No data available 0.49 mg/l Rat
Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2,3-propanetriol (3:1),
polymer with 1,1′-methylenebis[4-isocyanatobenzene]
No data
available
No data available No data available
2,6-di-tert-butyl-p-cresol
> 2900 mg/kg
Rat
> 2000 mg/kg Rat No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: May cause sensitization by inhalation and skin contact.
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
4,4′-Diphenylmethane diisocyanate 3
2,6-di-tert-butyl-p-cresol 3
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: May cause respiratory irritation.
Page 4 of 6
TC-277 PART A
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No. Comments
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8Diisocyanate Compounds (Category Code N120)
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
4,4′-Diphenylmethane diisocyanate 30 – 60 5,000 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
Occupational safety and health administration (osha)
29 cfr1910.119—process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: This product does not contain any chemicals which are known to the State of California to cause cancer, birth
defects or other reproductive harm.
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
Page 5 of 6
TC-277 PART A
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 2
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
2 0
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART A
SAFETY DATA SHEET
Date issued : 01/11/2011
SDS number : TC-277 PART B
Date revised : 07/19/2023
Revision number : 4
TC-277 PART B
1. Identification
Product identifier: TC-277 PART B
Relevant identified uses: Polyurethane curative
Manufacturer / Supplier Emergency telephone number (24 hour)
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. Hazard identification
Classification of the substance or mixture
Health hazards:
Skin Irritation, Category 2
Eye Irritation, Category 2A
Target Organ Toxicity (Repeated exposure), Category 2
Label elements
Health hazard Exclamation
mark
Signal word: WARNING
Hazard statement(s)
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
Prevention:
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P332+P313: If skin irritation occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P314: Get medical advice/attention if you feel unwell.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition/information on ingredients
Page 1 of 6
Chemical name % w/w CAS No.
Polyether polyol mixture 80 – 100Proprietary
Diethanolamine 1 – 5 111-42-2
Tertiary amine mixture 0.1 – 1Proprietary
4. First-aid measures
Eye: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Skin: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
Ingestion: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the patient
is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
Inhalation: Remove to fresh air. Seek medical advice/attention if breathing becomes difficult or if respiratory irritation develops.
Indication of immediate medical attention and special treatment needed, if necessary: Symptomatic and supportive therapy as needed.
Following severe exposure medical follow-up should be monitored for at least 48 hours.
5. Fire-fighting measures
Suitable extinguishing media: Water spray, carbon dioxide, dry chemical, or foam.
Hazardous combustion products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Fire fighting procedures: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not release runoff
from fire control methods to sewers or waterways.
Fire fighting equipment: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of unmanned
hose holders or monitor nozzles for fighting large fires.
6. Accidental release measures
Small spill: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE) as specified in the SDS or
the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain spill. Prevent product from
entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or vermiculite) and transfer to a
container for disposal according to local/national regulations.
Environmental precautions
Water spill: Do not discharge into drains, surface waters, or groundwater.
General procedures: Refer to section 8 of SDS for personal protection details.
Release notes: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary.
7. Handling and storage
General procedures: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open containers.
Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
Precautions for safe handling: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle
and use in a manner consistent with good industrial/manufacturing techniques and practices.
Conditions for safe storage: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid
unnecessary contact. Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
Storage temperature: 65-80 F (18-27 C)
Shelf life: 6 months from date of shipment under manufacturers recommended storage conditions.
8. Exposure controls/personal protection
Page 2 of 6
TC-277 PART B
Exposure controls
Control parameters
Occupational exposure limit values
Chemical name Type ppm mg/m
3
Diethanolamine
OSHA PEL
TWA – –
STEL – –
ACGIH TLV
TWA – –
STEL – –
NIOSH REL
TWA 3 15
STEL – –
Appropriate engineering controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
below recommended exposure limits.
Individual protection measures, such as personal protective equipment
Eye / face protection: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
Skin protection – hand protection: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be
used to prevent contact with eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer
maximum protection.
Respiratory protection: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may
be necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used
concurrently when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
Skin protection – other: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
Occupational hygiene practices: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in immediate
work area should be prohibited. Wash hands before eating.
Other use precautions: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Training is
important. Follow all label precautions.
9. Physical and chemical properties
Physical state: Viscous liquid
Color: Pale yellow
Odor: Slight
pH: No data available
Initial boiling point and boiling range: No data available
Flash point: > 100 C (212 F) Pensky-Martens CC
Vapor pressure: No data available
Relative vapor density: No data available
Relative density: 1.03 (water=1) at 25 C (77 F)
Solubility: Partially soluble
Dynamic viscosity: 2250 Centipoise at 25 C (77 F)
VOC content: Nil
10. Stability and reactivity
Reactivity: Hazardous reactions will not occur under normal transport or storage conditions.
Chemical stability: This product is stable under normal ambient conditions of temperature and pressure.
Conditions to avoid: High temperatures, moisture, and freezing conditions.
Page 3 of 6
TC-277 PART B
Possibility of hazardous reactions: No data available
Hazardous decomposition products: Carbon monoxide, carbon dioxide, nitrogen oxides, and silicon dioxide.
Incompatible materials: Isocyanates, oxidizing agents, bases, and acids.
11. Toxicological information
Acute toxicity
Chemical name LD50 (oral) mg/kg(rat) LD50 (dermal) mg/kg(rabbit) LC50 (inhalation) mg/l
Polyether polyol mixture No data available No data available No data available
Diethanolamine 300 to 2000 mg/kg Rat No data available No data available
Tertiary amine mixture No data available No data available No data available
Skin corrosion / irritation: Causes skin irritation.
Serious eye damage / irritation: Causes serious eye irritation.
Respiratory or skin sensitization: No data available
Germ cell mutagenicity: No data available
Carcinogenicity
Chemical name IARC
Diethanolamine 2B
Reproductive toxicity: No data available
Specific Target Organ Toxicity – single exposure: No data available
Specific Target Organ Toxicity – repeated exposure: May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard: No data available
12. Ecological information
Ecotoxicological information: No specific ecological data are available for this product. Refer to Section 6 for information regarding accidental
release and Section 15 for regulatory reporting information.
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Environmental data: No data available
Mobility in soil: No data available
13. Disposal considerations
Disposal methods: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. Transport information
USA Department of Transport Regulations (DOT): Not Regulated
ICAO / IATA – air: Not Regulated
IMO / IMDG – sea: Not Regulated
15. Regulatory information
UNITED STATES
SARA Section 311/312 Hazard Categories
311/312 Health hazards: Refer to Section 2 for hazard classification.
Page 4 of 6
TC-277 PART B
313 reportable ingredients: This product contains the following substances subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA Section 313 Toxic Chemicals
Chemical name % w/wCAS No.
Diethanolamine 1 – 5111-42-2
CERCLA regulatory: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
CERCLA Hazardous Substances and Reportable Quantities (RQ)
Chemical name % w/w CERCLA rq
Diethanolamine 1 – 5 100 lbs.
TSCA (The Toxic Substances Control Act)
TSCA regulatory: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA Status: This product or its components are listed in or exempt from the TSCA inventory requirements.
CAA 112(b) Hazardous Air Pollutants
Chemical name % w/wCAS No.
Acrylonitrile < 0.01107-13-1
Occupational safety and health administration (osha)
29 cfr1910.119---process safety management of highly hazardous chemicals: None of the chemicals in this product are considered highly
hazardous by OSHA.
California Proposition 65: WARNING: This product can expose you to chemicals including [see table below], which is [are] known to the
State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Chemical name % w/w Listed
Diethanolamine 1 - 5 Cancer
Styrene < 0.01 Cancer
Acrylonitrile < 0.01 Cancer
USA OSHA Hazard Communication Standard (29CFR 1910.1200): The contents of the SDS comply with the OSHA Hazard
Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS Regulatory Status: This product has been classified according to the hazard criteria of the CPR and the SDS contains all the
information required by the CPR.
Domestic Substances List (DSL) / Non-Domestic Substances List (NDSL): All components in this product are listed in or exempted from the
Domestic Substances List (DSL) or the Non-Domestic Substances List (NDSL).
16. Other information
Reason for issue: Revision
Date revised: 07/19/2023
Revision summary: This SDS replaces the 01/24/2020 SDS.
HMIS rating
Health * 1
Flammability 1
Physical hazard 0
Personal protection X
NFPA codes
1
1 0
Page 5 of 6
TC-277 PART B
HMIS ratings notes: Personal Protection: See Section 8
Manufacturer disclaimer: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of
BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes no legal
responsibility for use or reliance upon this data.
Page 6 of 6
TC-277 PART B
by | Sep 27, 2025
SAFETY DATA SHEET
Date Issued : 11/16/2012
SDS No : TC-274 PART A
Date Revised : 10/20/2021
Revision No : 3
TC-274 PART A
1. PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: TC-274 PART A
GENERAL USE: Polyurethane resin
MANUFACTURER 24 HR. EMERGENCY TELEPHONE NUMBERS
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. HAZARDS IDENTIFICATION
GHS CLASSIFICATIONS
Health:
Acute Toxicity (Inhalation), Category 4
Skin Irritation, Category 2
Eye Irritation, Category 2A
Respiratory Sensitization, Category 1
Skin Sensitization, Category 1
Carcinogenicity, Category 2
Target Organ Toxicity (Single exposure), Category 3
Target Organ Toxicity (Repeated exposure), Category 2
GHS LABEL
Health hazard Exclamation
mark
SIGNAL WORD: DANGER
HAZARD STATEMENTS
H332: Harmful if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H351: Suspected of causing cancer.
H335: May cause respiratory irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
PRECAUTIONARY STATEMENTS
Prevention:
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: In case of inadequate ventilation wear respiratory protection.
P264: Wash thoroughly after handling.
Page 1 of 6
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Response:
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/physician.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P308+P313: IF exposed or concerned: Get medical advice/ attention.
Storage:
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
Disposal:
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
3. COMPOSITION / INFORMATION ON INGREDIENTS
Chemical Name Wt.% CAS
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8
Polymeric diphenylmethane diisocyanate 10 – 309016-87-9
2,4′-Diphenylmethane diisocyanate 7 – 135873-54-1
Methyloxirane, polymer with oxirane, ether with 1,2,3-propanetriol, polymer with 1,1′-methylenebis[isocyanatobenzene]7 – 13112898-48-3
Isocyanic acid, polymethylenepoly- phenylene ester, polymer with methyloxirane polymer with oxirane ether with 1,2,3-
propanetriol
7 – 1358228-05-0
4. FIRST AID MEASURES
EYES: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
SKIN: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
INGESTION: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the
patient is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
INHALATION: Remove to fresh air. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial respiration or
oxygen by trained personnel. Get immediate medical attention.
NOTES TO PHYSICIAN: Symptomatic and supportive therapy as needed. Following severe exposure medical follow-up should be monitored
for at least 48 hours.
5. FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA: Water spray, carbon dioxide, dry chemical, or foam.
HAZARDOUS COMBUSTION PRODUCTS: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
FIRE FIGHTING PROCEDURES: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not
release runoff from fire control methods to sewers or waterways.
FIRE FIGHTING EQUIPMENT: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of
unmanned hose holders or monitor nozzles for fighting large fires.
6. ACCIDENTAL RELEASE MEASURES
SPILL AND LEAK PROCEDURES: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE)
Page 2 of 6
TC-274 PART A
as specified in the SDS or the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain
spill. Prevent product from entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or
vermiculite) and transfer to a container for disposal according to local/national regulations.
ENVIRONMENTAL PRECAUTIONS
WATER SPILL: Do not discharge into drains, surface waters, or groundwater.
GENERAL PROCEDURES: Refer to section 8 of SDS for personal protection details.
RELEASE NOTES: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if
necessary.
7. HANDLING AND STORAGE
GENERAL PROCEDURES: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open
containers. Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
HANDLING: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle and use in a
manner consistent with good industrial/manufacturing techniques and practices.
STORAGE: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid unnecessary contact.
Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
STORAGE TEMPERATURE: 65-80 F (18-27 C)
SHELF LIFE: 6 months from date of shipment under manufacturers recommended storage conditions.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE GUIDELINES
OSHA HAZARDOUS COMPONENTS (29 CFR1910.1200)
EXPOSURE LIMITS
Chemical Name Type ppm mg/m
3
4,4′-Diphenylmethane diisocyanate
OSHA PEL C 0.02 0.2
ACGIH TLV TWA 0.005 –
NIOSH REL
TWA 0.005 0.05
C 0.02
[1]
0.2
[1]
Polymeric diphenylmethane diisocyanate
ACGIH TLV TWA 0.005
NIOSH REL
TWA 0.005 0.05
C 0.02 0.2
OSHA PEL C 0.02 0.2
Footnotes:
1. 10-minute
ENGINEERING CONTROLS: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels below
recommended exposure limits.
PERSONAL PROTECTIVE EQUIPMENT
EYES AND FACE: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
SKIN: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be used to prevent contact with
eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer maximum protection.
RESPIRATORY: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may be
necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used concurrently
when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
PROTECTIVE CLOTHING: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
WORK HYGIENIC PRACTICES: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in
Page 3 of 6
TC-274 PART A
immediate work area should be prohibited. Wash hands before eating.
OTHER USE PRECAUTIONS: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Training is important. Follow all label precautions.
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE: Liquid
ODOR: Slightly musty
COLOR: Brown
pH: No data available
FLASH POINT AND METHOD: > 110 C (230 F) Setaflash (closed cup)
VAPOR PRESSURE: No data available
VAPOR DENSITY: No data available
BOILING POINT: No data available
SOLUBILITY IN WATER: Reacts with water
SPECIFIC GRAVITY: 1.19 (water=1) at 25 C (77 F)
VISCOSITY #1: 205 Centipoise at 25 C (77 F)
(VOC): Nil
10. STABILITY AND REACTIVITY
REACTIVITY: Hazardous reactions will not occur under normal transport or storage conditions.
STABILITY: This product is stable under normal ambient conditions of temperature and pressure.
CONDITIONS TO AVOID: High temperatures, moisture, and freezing conditions.
POSSIBILITY OF HAZARDOUS REACTIONS: Reaction with water produces carbon dioxide. Exothermic reaction with materials containing
active hydrogen groups. The reaction becomes progressively more vigorous and can be violent at higher temperatures if the miscibility of the
reaction partners is good or is supported by stirring or by the presence of solvents. MDI is insoluble with, and heavier than water and sinks to the
bottom but reacts slowly at the interface. A solid water-insoluble layer of polyurea is formed at the interface by liberating carbon dioxide gas.
HAZARDOUS DECOMPOSITION PRODUCTS: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrocarbons, and hydrogen cyanide.
INCOMPATIBLE MATERIALS: Water, amines, bases, and acids.
11. TOXICOLOGICAL INFORMATION
ACUTE TOXICITY
Chemical Name ORAL LD50
DERMAL
LD
50
INHALATION
LC
50
4,4′-Diphenylmethane diisocyanate
> 2000 mg/kg
Rat
> 9400 mg/kg
Rabbit
2.24 mg/l Rat (1 h,
dust/mist)
Polymeric diphenylmethane diisocyanate
> 10000
mg/kg Rat
> 9400 mg/kg
Rabbit
490 mg/m3 Rat (4
h)
2,4′-Diphenylmethane diisocyanate
No data
available
> 9400 mg/kg
Rabbit
0.49 mg/l Rat (4 h)
Methyloxirane, polymer with oxirane, ether with 1,2,3-propanetriol, polymer with
1,1′-methylenebis[isocyanatobenzene]
No data
available
> 9400 mg/kg
Rabbit
No data available
Isocyanic acid, polymethylenepoly- phenylene ester, polymer with methyloxirane
polymer with oxirane ether with 1,2,3-propanetriol
No data
available
> 9400 mg/kg
Rabbit
No data available
SKIN CORROSION/IRRITATION: Causes skin irritation.
SERIOUS EYE DAMAGE/IRRITATION: Causes serious eye irritation.
RESPIRATORY OR SKIN SENSITISATION: May cause sensitization by inhalation and skin contact.
GERM CELL MUTAGENICITY: No data available
Page 4 of 6
TC-274 PART A
CARCINOGENICITY
Chemical Name IARC Status
4,4′-Diphenylmethane diisocyanate 3
Polymeric diphenylmethane diisocyanate 3
REPRODUCTIVE TOXICITY: No data available
STOT-SINGLE EXPOSURE: May cause respiratory irritation.
STOT-REPEATED EXPOSURE: May cause damage to organs through prolonged or repeated exposure.
ASPIRATION HAZARD: No data available
12. ECOLOGICAL INFORMATION
ECOTOXICOLOGICAL INFORMATION: No specific ecological data are available for this product. Refer to Section 6 for information
regarding accidental release and Section 15 for regulatory reporting information.
CHEMICAL FATE INFORMATION: No data available
BIOACCUMULATION/ACCUMULATION: No data available
ENVIRONMENTAL DATA: No data available
DISTRIBUTION: No data available
13. DISPOSAL CONSIDERATIONS
DISPOSAL METHOD: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. TRANSPORT INFORMATION
DOT (DEPARTMENT OF TRANSPORTATION): Not Regulated
AIR (ICAO/IATA): Not Regulated
VESSEL (IMO/IMDG): Not Regulated
15. REGULATORY INFORMATION
UNITED STATES
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZ ATION ACT)
311/312 HEALTH HAZARDS: Refer to Section 2 for hazard classification.
313 REPORTABLE INGREDIENTS: This product contains the following substances subject to the reporting requirements of Section 313
of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
EPCRA SECTION 313 SUPPLIER NOTIFICATION
Chemical Name Wt.% CAS Comments
4,4′-Diphenylmethane diisocyanate 30 – 60101-68-8Diisocyanate Compounds (Category Code N120)
Polymeric diphenylmethane diisocyanate 10 – 309016-87-9Diisocyanate Compounds (Category Code N120)
CERCLA (COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPE NSATION, AND LIABILITY ACT)
CERCLA REGULATORY: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
Chemical Name Wt.% CERCLA RQ
4,4′-Diphenylmethane diisocyanate 30 – 60 5,000 lbs.
TSCA (TOXIC SUBSTANCE CONTROL ACT)
TSCA REGULATORY: This product does not contain any substances subject to TSCA Section 12(b) export notification.
Page 5 of 6
TC-274 PART A
TSCA STATUS: This product or its components are listed in or exempt from the TSCA inventory requirements.
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA )
29 CFR1910.119—PROCESS SAFETY MANAGEMENT OF HIGHL Y HAZARDOUS CHEMICALS: None of the chemicals in this
product are considered highly hazardous by OSHA.
CALIFORNIA PROPOSITION 65: This product does not contain any chemicals which are known to the State of California to cause cancer,
birth defects or other reproductive harm.
OSHA HAZARD COMM. RULE: The contents of the SDS comply with the OSHA Hazard Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS (WORKPLACE HAZARDOUS MATERIALS INFORMATION SY STEM): This product has been classified according to the
hazard criteria of the CPR and the SDS contains all the information required by the CPR.
DOMESTIC SUBSTANCE LIST (INVENTORY): All components in this product are listed in or exempted from the Domestic Substances
List (DSL) or the Non-Domestic Substances List (NDSL).
16. OTHER INFORMATION
REASON FOR ISSUE: Revision
Date Revised: 10/20/2021
REVISION SUMMARY: This SDS replaces the 08/28/2018 SDS.
HMIS RATING
HEALTH * 2
FLAMMABILITY 1
PHYSICAL HAZARD 0
PERSONAL PROTECTION X
NFPA CODES
1
2 0
HMIS RATINGS NOTES: Personal Protection: See Section 8
MANUFACTURER DISCLAIMER: This information is furnished without warranty, expressed or implied, except that is accurate to the best
knowledge of BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes
no legal responsibility for use or reliance upon this data.
Page 6 of 6
TC-274 PART A
SAFETY DATA SHEET
Date Issued : 11/16/2012
SDS No : TC-274 PART B
Date Revised : 10/20/2021
Revision No : 3
TC-274 PART B
1. PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: TC-274 PART B
GENERAL USE: Polyurethane curative
MANUFACTURER 24 HR. EMERGENCY TELEPHONE NUMBERS
BJB Enterprises, Inc.
14791 Franklin Avenue
Tustin, CA 92780
Emergency Phone: (714) 734-8450
CHEMTREC (USA & Canada): (800) 424-9300
or (703) 527-3887 CCN# 2820
2. HAZARDS IDENTIFICATION
GHS CLASSIFICATIONS
Health:
Eye Irritation, Category 2A
GHS LABEL
Exclamation
mark
SIGNAL WORD: WARNING
HAZARD STATEMENTS
H319: Causes serious eye irritation.
PRECAUTIONARY STATEMENTS
Prevention:
P264: Wash thoroughly after handling.
P280: Wear eye protection/face protection.
Response:
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue
rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
3. COMPOSITION / INFORMATION ON INGREDIENTS
Chemical Name Wt.% CAS
Polyether polyol mixture 60 – 100Proprietary
Diethanolamine 0.1 – 1111-42-2
Tertiary amine mixture 0.1 – 1Proprietary
4. FIRST AID MEASURES
EYES: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Get
medical advice/attention.
Page 1 of 5
SKIN: Immediately wash skin with soap and plenty of water. Remove contaminated clothing. Get medical advice/attention if irritation or rash
develops. Wash clothing before reuse.
INGESTION: If swallowed, call a physician immediately. Do not induce vomiting unless directed to do so by medical personnel. Provided the
patient is conscious, wash out mouth with water. Never give anything by mouth to an unconscious person.
INHALATION: Remove to fresh air. Seek medical advice/attention if breathing becomes difficult or if respiratory irritation develops.
NOTES TO PHYSICIAN: Symptomatic and supportive therapy as needed. Following severe exposure medical follow-up should be monitored
for at least 48 hours.
5. FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA: Water spray, carbon dioxide, dry chemical, or foam.
HAZARDOUS COMBUSTION PRODUCTS: Carbon monoxide, carbon dioxide, and nitrogen oxides.
FIRE FIGHTING PROCEDURES: Cool fire exposed containers with water spray. Remove containers from the fire area if possible. Do not
release runoff from fire control methods to sewers or waterways.
FIRE FIGHTING EQUIPMENT: Firefighters should wear positive pressure self-contained breathing apparatus (SCBA) and consider use of
unmanned hose holders or monitor nozzles for fighting large fires.
6. ACCIDENTAL RELEASE MEASURES
SPILL AND LEAK PROCEDURES: Evacuate unnecessary personnel from the spill area. Wear necessary personal protective equipment (PPE)
as specified in the SDS or the site emergency response plan. Eliminate all sources of ignition. Ensure adequate ventilation. Dike and contain
spill. Prevent product from entering drains or waterways. Absorb with non-combustible material (such as sand, earth, diatomaceous earth, or
vermiculite) and transfer to a container for disposal according to local/national regulations.
ENVIRONMENTAL PRECAUTIONS
WATER SPILL: Do not discharge into drains, surface waters, or groundwater.
GENERAL PROCEDURES: Refer to section 8 of SDS for personal protection details.
RELEASE NOTES: Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if
necessary.
7. HANDLING AND STORAGE
GENERAL PROCEDURES: Avoid contact with eyes, skin and clothing. Use only with adequate ventilation. Avoid breathing vapor over open
containers. Avoid open container exposure to damp air. Avoid breathing aerosols, mists, and vapors.
HANDLING: Use appropriate personal protective equipment as specified in Section 8. Handle in a well-ventilated area. Handle and use in a
manner consistent with good industrial/manufacturing techniques and practices.
STORAGE: Store in a dry and well-ventilated place, away from excessive heat, in original or similar container. Avoid unnecessary contact.
Protect from freezing. Containers should be tightly sealed to prevent contamination with foreign materials.
STORAGE TEMPERATURE: 65-80 F (18-27 C)
SHELF LIFE: 6 months from date of shipment under manufacturers recommended storage conditions.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE GUIDELINES
OSHA HAZARDOUS COMPONENTS (29 CFR1910.1200)
EXPOSURE LIMITS
Chemical Name Type ppm mg/m
3
Diethanolamine NIOSH REL TWA 3 15
ENGINEERING CONTROLS: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels below
recommended exposure limits.
PERSONAL PROTECTIVE EQUIPMENT
EYES AND FACE: Safety goggles or glasses are recommended. Plastic face shields should be used for complete face protection to protect
against possible splashing or spraying of material. ANSI Z87.1 or approved equivalent.
SKIN: Chemical-resistant gloves and chemical goggles, face-shield, and synthetic apron or coveralls should be used to prevent contact with
eyes, skin, or clothing. Wear nitrile or neoprene gloves. Chemical resistant gloves lined with polyethylene offer maximum protection.
Page 2 of 5
TC-274 PART B
RESPIRATORY: Exhaust ventilation recommended. An organic vapor cartridge or fresh air supplied respirator (NIOSH approved) may be
necessary for certain applications. Consider the type of application, environmental concentrations, and other materials being used concurrently
when determining respirator use and selection. Observe OSHA regulations for respirator use (29 CFR 1910.134).
PROTECTIVE CLOTHING: Protective clothing should be selected and used in accordance with “Guidelines for the Selection of Chemical
Protective Clothing” published by ACGIH.
WORK HYGIENIC PRACTICES: Contaminated clothing should be changed and washed before reuse. Eating, drinking and smoking in
immediate work area should be prohibited. Wash hands before eating.
OTHER USE PRECAUTIONS: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Training is important. Follow all label precautions.
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE: Viscous liquid
ODOR: Slight
COLOR: Off-white
pH: No data available
PERCENT VOLATILE: Nil
FLASH POINT AND METHOD: > 100 C (212 F) Pensky-Martens CC
VAPOR PRESSURE: No data available
VAPOR DENSITY: No data available
BOILING POINT: No data available
SOLUBILITY IN WATER: Partially soluble
SPECIFIC GRAVITY: 1.03 (water=1) at 25 C (77 F)
VISCOSITY #1: 1070 Centipoise at 25 C (77 F)
(VOC): Nil
10. STABILITY AND REACTIVITY
REACTIVITY: Hazardous reactions will not occur under normal transport or storage conditions.
STABILITY: This product is stable under normal ambient conditions of temperature and pressure.
CONDITIONS TO AVOID: High temperatures, moisture, and freezing conditions.
POSSIBILITY OF HAZARDOUS REACTIONS: No data available
HAZARDOUS DECOMPOSITION PRODUCTS: Carbon monoxide, carbon dioxide, and nitrogen oxides.
INCOMPATIBLE MATERIALS: Isocyanates, strong acids, strong bases, and strong oxidizing agents.
11. TOXICOLOGICAL INFORMATION
ACUTE TOXICITY
Chemical Name ORAL LD50 DERMAL LD50 INHALATION LC 50
Polyether polyol mixture No data available No data available No data available
Diethanolamine 1600 mg/kg Rat 12200 mg/kg Rabbit No data available
Tertiary amine mixture No data available No data available No data available
Styrene 2650 mg/kg Rat > 2000 mg/kg Rat 12000 mg/m3 Rat (4 h)
Acrylonitrile 81 mg/kg Rat 226 mg/kg Rabbit 2.09 mg/l Rat (4 h)
SKIN CORROSION/IRRITATION: No data available
SERIOUS EYE DAMAGE/IRRITATION: Causes serious eye irritation.
RESPIRATORY OR SKIN SENSITISATION: No data available
GERM CELL MUTAGENICITY: No data available
CARCINOGENICITY
Page 3 of 5
TC-274 PART B
Chemical Name NTP Status IARC Status
Diethanolamine 2B
Styrene 2B
Acrylonitrile 2 2B
REPRODUCTIVE TOXICITY: No data available
STOT-SINGLE EXPOSURE: No data available
STOT-REPEATED EXPOSURE: No data available
ASPIRATION HAZARD: No data available
12. ECOLOGICAL INFORMATION
ECOTOXICOLOGICAL INFORMATION: No specific ecological data are available for this product. Refer to Section 6 for information
regarding accidental release and Section 15 for regulatory reporting information.
CHEMICAL FATE INFORMATION: No data available
BIOACCUMULATION/ACCUMULATION: No data available
ENVIRONMENTAL DATA: No data available
DISTRIBUTION: No data available
13. DISPOSAL CONSIDERATIONS
DISPOSAL METHOD: The generation of waste should be avoided or minimized wherever possible. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe way. Dispose of surplus and non-recyclable products via a licensed
waste disposal contractor. Disposal of this product, solutions and any by-products should at all times comply with the requirements of
environmental protections and waste disposal legislation and any regional local authority requirements. Avoid dispersal of spilled material and
runoff and contact with soil, waterways, drains and sewers.
14. TRANSPORT INFORMATION
DOT (DEPARTMENT OF TRANSPORTATION): Not Regulated
AIR (ICAO/IATA): Not Regulated
VESSEL (IMO/IMDG): Not Regulated
15. REGULATORY INFORMATION
UNITED STATES
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZ ATION ACT)
311/312 HEALTH HAZARDS: Acute Health Hazard
313 REPORTABLE INGREDIENTS: This product does not contain any substances subject to the reporting requirements of Section 313 of
Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372.
CERCLA (COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPE NSATION, AND LIABILITY ACT)
CERCLA REGULATORY: This product contains one or more substances regulated as a hazardous substance under the Comprehensive
Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302).
Chemical Name Wt.% CERCLA RQ
Diethanolamine 0.1 – 1 100
Styrene < 0.01 1,000 lbs.
Acrylonitrile < 0.001 100 lbs.
TSCA (TOXIC SUBSTANCE CONTROL ACT)
TSCA REGULATORY: This product does not contain any substances subject to TSCA Section 12(b) export notification.
TSCA STATUS: This product or its components are listed in or exempt from the TSCA inventory requirements.
CLEAN AIR ACT
Page 4 of 5
TC-274 PART B
Chemical Name Wt.% CAS
Acrylonitrile < 0.001107-13-1
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA )
29 CFR1910.119---PROCESS SAFETY MANAGEMENT OF HIGHL Y HAZARDOUS CHEMICALS: None of the chemicals in this
product are considered highly hazardous by OSHA.
CALIFORNIA PROPOSITION 65: WARNING: This product can expose you to chemicals including [see table below], which is [are]
known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Chemical Name Wt.% Listed
Diethanolamine 0.1 - 1 Cancer
Styrene < 0.01 Cancer
Acrylonitrile < 0.001 Cancer
OSHA HAZARD COMM. RULE: The contents of the SDS comply with the OSHA Hazard Communication Standard 29 CFR 1910.1200.
CANADA
WHMIS (WORKPLACE HAZARDOUS MATERIALS INFORMATION SY STEM): This product has been classified according to the
hazard criteria of the CPR and the SDS contains all the information required by the CPR.
DOMESTIC SUBSTANCE LIST (INVENTORY): All components in this product are listed in or exempted from the Domestic Substances
List (DSL) or the Non-Domestic Substances List (NDSL).
16. OTHER INFORMATION
REASON FOR ISSUE: Revision
Date Revised: 10/20/2021
REVISION SUMMARY: This SDS replaces the 08/28/2018 SDS.
HMIS RATING
HEALTH 1
FLAMMABILITY 1
PHYSICAL HAZARD 0
PERSONAL PROTECTION X
NFPA CODES
1
1 0
HMIS RATINGS NOTES: Personal Protection: See Section 8
MANUFACTURER DISCLAIMER: This information is furnished without warranty, expressed or implied, except that is accurate to the best
knowledge of BJB Enterprises, Inc. The data on this sheet relates only to the specific material designated herein. BJB Enterprises, Inc. assumes
no legal responsibility for use or reliance upon this data.
Page 5 of 5
TC-274 PART B
by | Sep 27, 2025
SAFETY DATA SHEET
Date Issued : | 1/16/2012
SDS No: TC-274 PARTA
7 Date Revised : 10/20/2021
ENTERPRISES Revision No : 3
TC-274 PARTA
eee
1. PRODUCT AND COMPANY IDENTIFICATION
aE EEE ee eet
PRODUCT NAME: TC-274 PART A
GENERAL USE: Polyurethane resin
MANUFACTURER 24 HR. EMERGENCY TELEPHONE NUMBERS
BJB Enterprises, Inc. CHEMTREC (USA & Canada): (800) 424-9300
14791 Franklin Avenue or (703) 527-3887 CCN# 2820
Tustin, CA 92780
Emergency Phone: (714) 734-8450
2. HAZARDS IDENTIFICATION
GHS CLASSIFICATIONS
Health:
Acute Toxicity (Inhalation), Category 4
Skin Irritation, Category 2
Eye Irritation, Category 2A
Respiratory Sensitization, Category 1
Skin Sensitization, Category 1
Carcinogenicity, Category 2
Target Organ Toxicity (Single exposure), Category 3
Target Organ Toxicity (Repeated exposure), Category 2
GHS LABEL
Health hazard Exclamation
mark
SIGNAL WORD: DANGER
HAZARD STATEMENTS
332: Harmful if inhaled.
HB 15: Causes skin irritation.
H3 19: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
317: May cause an allergic skin reaction.
H351: Suspected of causing cancer.
335: May cause respiratory irritation.
H373: May cause damage to organs through prolonged or repeated exposure.
PRECAUTIONARY STATEMENTS
Prevention:
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: In case of inadequate ventilation wear respiratory protection.
P264: Wash thoroughly after handling.
by | Sep 27, 2025
e
e@,-.@
@ . BB POLYURETHANE FOAM SYSTEMS
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
ENTERPRISES
An 150-9001 Certified company
ee
POLYSOFT 1 RoHS
3-5 Ib. VARIABLE DENSITY, FLEXIBLE FOAM
TC-266 A/B PolySoft 1 is a two-component, flexible polyurethane foam. The cured material feels similar to a soft furniture cushion.
BJB s 6800 Series Pigments may be added to the B side for developing a wide range of colors. End users can adjust firmness with a
slight ratio change as listed below. Common applications are prototypes, prosthetics, medical training devices, movie special effects
props and more. This material is frequently molded behind flexible polyurethane skin materials such as BJB s FP, F, M, and L line or
other BJB elastomers.
Note: TC-266 at a ratio of 50/100 pbw produces a soft, quick recovery foam with a density of 3 pounds. At 30/100 pbw, the result
will be a softer, slower recovery foam with a density of 5 pounds.
3# DENSITY 5# DENSITY
pi aE colel Rul For a soft resilient foam For an extremely soft foam
, A . 50 parts A 30 Parts A
Mix Ratio (by weight) 100 parts B 400 Parts B
Density, (free rise) Ibs/t 5
Densiy, (fee rise) kgin re 80
Cream Time @ 77 F (25 C) 15-20 seconds 25 30 seconds
Rise Time 75 90 seconds 90 100 seconds
Demold Time @ 77 F (25 C) _ a 7
Depending on part size and cross section aoe mines 20-30 minutes
PARTA PARTB
Specific Gravity @ 77 (25 C) 1.02
Viscosity, (cps) @ 77 F (25 C) Brookfield 1200
*The density and processing times listed are derived from a statistical average of long-term testing. We recommend a test mix be
performed before use.
a 100 gram sample MIXING:
. Mixing is best with a high speed drill or air motor with a Jiffy Mixer .
tetany, MEEPS. aes pxanson The blade shears the material and provides a thorough mix within the 8
= a to 10 second period generally established for achieving a uniform blend.
7 a 1 Mixing too long or not enough can result in poor material performance.
4ib lb 8lb Once mixed, the material should be immediately poured. If too much
| 5 time goes by, the foam will rise in the mix container and the batch may
a 1 be lost.
hig When pouring the foam, avoid trying to scrape any material from the
i ~~ __ container sidewalls or bottom. Generally, there isn t enough time to do
Example of Expansion RatesbyDensity = _ this and more importantly there may be material that is not well mixed
f it ie on the container sides.
TC-266 A/B_ Page | of 2 Date: 09/08/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www. bjbenterprises.com
