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MATERIAL SAFETY DATA SHEET
Date Issued: 04/06/2009
MSDS No: WC-753 PART A
WC-753 PART A
1. PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: WC-753 PART A
GENERAL USE: Polyurethane resin
CHEMICAL FAMILY: Isocyanate terminated polyglycol mixture
MANUFACTURER 24 HR. EMERGENCY TELEPHONE NUMBERS
CHEMTREC (US Transportation): (800) 424-9300
BJB Enterprises, Inc.
14791 Franklin Avenue or (703) 527-3887
Tustin, CA 92780
Customer Service Number: (714) 734-8450
Fax: (714) 734-8929
2. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
PHYSICAL APPEARANCE AND ODOR: Colorless liquid with a slight odor.
IMMEDIATE CONCERNS: May cause eye and skin irritation. Use in well ventilated areas. Avoid breathing vapors. Avoid
contact with strong oxidizers and strong acids, as sudden reaction may result in fire and toxic fumes. Reacts slowly with water
to produce carbon dioxide which may rupture containers. This reaction accelerates at higher temperatures.
POTENTIAL HEALTH EFFECTS
EYES: May cause irritation, tearing, reddening, and swelling. May cause slight corneal injury.
SKIN: May cause irritation and possible allergic sensitivity. Skin inflammation is characterized by itching, scaling, or reddening.
INGESTION: May cause irritation with symptoms including abdominal pain, nausea, vomiting, and diarrhea.
INHALATION: May be harmful if inhaled. Inhalation at levels above the occupational exposure limit could cause respiratory
sensitization and risk of serious damage to the respiratory system. The onset of the respiratory symptoms may be delayed for
several hours after exposure. A hyper-reactive response to even minimal concentrations of diisocyanates may develop in
sensitized persons.
MEDICAL CONDITIONS AGGRAVATED: May cause or aggravate dermatitis and asthma.
ROUTES OF ENTRY: Eye and skin contact, inhalation of vapors, or accidental ingestion.
3. COMPOSITION / INFORMATION ON INGREDIENTS
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WC-753 PART A
Chemical Name Wt.% CAS
Cycloaliphatic diisocyanate prepolymer 40 - 50 Proprietary
4,4'-Diphenylmethane diisocyanate 15 - 25 101-68-8
Modified MDI 15 - 25 Proprietary
Dicyclohexylmethane-4,4'-diisocyanate 10 - 20 5124-30-1
Solvent naphtha, petroleum, light aromatic <1 64742-95-6
Xylene <1 1330-20-7
1,2,4-trimethylbenzene < 0.3 95-63-6
Ethylbenzene < 0.2 100-41-4
Toluene 0.005 108-88-3
4. FIRST AID MEASURES
EYES: Immediately rinse with water. Remove contact lenses. Hold eyelids apart and flush eyes with water 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 symptoms
occur. Wash clothing before reuse.
INGESTION: If swallowed, call a physician immediately. Do NOT induce vomiting. Provided the patient is conscious, wash out
mouth with water. Never give anything by mouth to an unconscious person.
INHALATION: Remove patient from exposure, keep warm and at rest. Obtain immediate medical attention. Treatment is
symptomatic for primary irritation or bronchospasm. If breathing is labored, oxygen should be administered by qualified
personnel. Apply artificial respiration if breathing has ceased or shows signs of failing.
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
FLASHPOINT AND METHOD: 96.1癈 (205癋) Pensky-Martens CC
EXTINGUISHING MEDIA: Water spray, carbon dioxide, dry chemical, or alcohol foam.
EXPLOSION HAZARDS: Avoid contact with strong oxidizers and strong acids, as sudden reaction may result in fire and toxic
fumes. Reacts slowly with water to produce carbon dioxide which may rupture closed containers. This reaction accelerates at
higher temperatures.
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
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WC-753 PART A
Section 15).
RELEASE NOTES: US regulations require reporting spills of this material that could reach any surface waters. The toll free
number for the US Coast Guard National Response Center is (800) 424-8802.
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 cool, dry 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.
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
mg/m3 mg/m3 mg/m3
Chemical Name ppm ppm ppm
TWA NE NE NE NE NE NE
Cycloaliphatic diisocyanate prepolymer
STEL NE NE NE NE NE NE
[1] [1]
TWA NE NE 0.005 0.051 0.005 0.05
4,4'-Diphenylmethane diisocyanate
STEL NE NE NE NE NE NE
TWA NE NE NE NE NE NE
Modified MDI
STEL NE NE NE NE NE NE
[2] [2]
TWA NE NE 0.005 0.054 0.01 0.11
Dicyclohexylmethane-4,4'-diisocyanate
STEL NE NE NE NE NE NE
TWA NE NE NE NE NE NE
Solvent naphtha, petroleum, light aromatic
STEL NE NE NE NE NE NE
TWA 100 435 100 434 NE NE
Xylene
STEL NE NE 150 651 NE NE
[1] [1]
TWA NE NE 25 123 25 125
1,2,4-trimethylbenzene
STEL NE NE NE NE NE NE
[1] [1]
TWA 100 435 100 434 100 435
Ethylbenzene
[1] [1]
STEL NE NE 125 543 125 545
[1] [1]
TWA 200 NE 50 188 100 375
Toluene
[1] [1]
STEL 300 NE NE NE 150 560
OSHA TABLE COMMENTS:
1. NIOSH REL
2. NIOSH REL (ceiling)
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WC-753 PART A
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: Slight
COLOR: Colorless
pH: Not Applicable
PERCENT VOLATILE: 1.5
VAPOR PRESSURE: < 0.1 mmHg at 25癈 (77癋)
VAPOR DENSITY: Not Established
BOILING POINT: Decomposes
FLASHPOINT AND METHOD: 96.1癈 (205癋) Pensky-Martens CC
SOLUBILITY IN WATER: Insoluble, reacts slowly with water
SPECIFIC GRAVITY: 1.120 (water=1) at 25癈 (77癋)
VISCOSITY: 4150 Centipoise at 25癈 (77癋)
VOC (Volatile Organic Compound): 16.700 g/l Calculated. Theoretical VOC minus water and exempt solvents.
10. STABILITY AND REACTIVITY
STABILITY: This product is stable under normal ambient conditions of temperature and pressure.
POLYMERIZATION: Product may foam when exposed to heat and moisture.
CONDITIONS TO AVOID: High temperatures, moisture, and freezing conditions.
HAZARDOUS DECOMPOSITION PRODUCTS: Carbon monoxide, carbon dioxide, nitrous oxide, and HCN.
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WC-753 PART A
INCOMPATIBLE MATERIALS: Water, strong bases, alcohols, amines, metals, and oxidizing agents.
11. TOXICOLOGICAL INFORMATION
TOXICITY TO ANIMALS
ORAL LD50 DERMAL LD50 INHALATION
Chemical Name
(rat) (rabbit) LC50 (rat)
Cycloaliphatic diisocyanate prepolymer Not Established Not Established Not Established
4,4'-Diphenylmethane diisocyanate > 5000 mg/kg > 5000 mg/kg Not Established
Modified MDI Not Established Not Established Not Established
9900 mg/kg > 10000 mg/kg 0.29 to 0.30
Dicyclohexylmethane-4,4'-diisocyanate mg/l (4 h of
aerosols)
Solvent naphtha, petroleum, light aromatic Not Established Not Established Not Established
Xylene 4300 mg/kg 14100 uL/kg 4550 ppm (4 h)
1,2,4-trimethylbenzene 12.7 g/kg Not Established 18 g/m3
Ethylbenzene 3500 mg/kg 17800 uL/kg Not Established
Toluene 636 mg/kg 2 to 14 g/kg 26700 ppm (1h)
CARCINOGENICITY
IARC
Chemical Name
Status
4,4'-Diphenylmethane diisocyanate 3
Ethylbenzene 2B
Toluene 3
IARC: This product contains substances that are classified as possible carcinogens to humans.
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.
13. DISPOSAL CONSIDERATIONS
DISPOSAL METHOD: The generation of waste should be avoided or minimized wherever possible. Disposal should be in
accordance with local, state, provincial or national regulations.
EMPTY CONTAINER: Containers must be emptied (as defined by RCRA, 40 CFR Section 261.7 or state regulations that may be
more stringent) and either passed to an approved recycler or destroyed.
14. TRANSPORT INFORMATION
DOT (DEPARTMENT OF TRANSPORTATION) LAND
NOTE: Not Regulated
AIR (ICAO/IATA)
NOTE: Not Regulated
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WC-753 PART A
VESSEL (IMO/IMDG)
NOTE: Not Regulated
15. REGULATORY INFORMATION
UNITED STATES
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZATION 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 15 - 25 101-68-8 Diisocyanate Compounds (Category Code N120)
Dicyclohexylmethane-4,4'-diisocyanate 10 - 20 5124-30-1 Diisocyanate Compounds (Category Code N120)
CERCLA (COMPREHENSIVE RESPONSE, COMPENSATION, AND LIABILITY 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).
CERCLA
Chemical Name Wt.%
RQ
4,4'-Diphenylmethane diisocyanate 15 - 25 5,000 lbs.
Xylene <1 100 lbs.
Ethylbenzene < 0.2 1,000
Toluene 0.005 1,000 lbs.
TSCA (TOXIC SUBSTANCE CONTROL ACT)
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.
REGULATIONS
STATE REGULATIONS: 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):
CALIFORNIA PROPOSITION 65
Chemical Name Wt.% Listed
Ethylbenzene < 0.2 Cancer
Toluene 0.005 Developmental Toxicity
OSHA HAZARD COMM. RULE: The contents of the MSDS comply with the OSHA Hazard Communication Standard 29 CFR
1910.1200.
16. OTHER INFORMATION
REASON FOR ISSUE: Revised format
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WC-753 PART A
APPROVED BY: Michael Rose TITLE: R & D Manager
PREPARED BY: Gus Alidad
HMIS RATING NFPA CODES
* 3
HEALTH:
1
1
FLAMMABILITY:
3 1
1
PHYSICAL HAZARD:
X
PERSONAL PROTECTION:
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.
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