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MATERIAL SAFETY DATA SHEET

Page 1 of 8

01/13/2005

GMID: 162845

Product Name:

Great Stuff

1. IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE

COMPANY/UNDERTAKING

Collective ID: 18

Revised: 09/17/02 (sec. 5)

24-Hour Emergency Phone Number: 517-636-4400

The Dow Chemical Company, Midland, MI 48674

Customer Service: 800-366-4740

Material Type: Flammable - OCF

CHEMICAL CAS# CONCENTRATION

Polymethylene polyphenyl isocyanate 009016-87-9 5-10%

containing 4,4'Methylene bisphenyl

isocyanate CAS# 000101-68-8

(Approximately 40-50% MDI)

Liquified Petroleum 10-30%

Mixture Containing

Isobutane (CAS# 75-28-5) &

Propane (CAS# 74-98-6)

Prepolymer of MDI and Mixture 40-70%

Polyether Polyol

2. COMPOSITION/INFORMATION ON INGREDIENTS

DANGER!

Extremely Flammable.

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Sprayed or heated material harmful if inhaled. May cause allergic

skin reaction. May cause allergic respiratory reaction and lung injury.

Avoid temperatures above 105F (41C). Toxic flammable gases and heat are

released under decomposition conditions. Toxic fumes may be released in fire

situations. Reacts slowly with water releasing, carbon dioxide, which can

cause pressure buildup and rupture of closed containers. Elevated

temperatures accelerate this process.

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POTENTIAL HEALTH EFFECTS (See Section 11 for toxicological data.)

EYE: May cause moderate eye irritation. May cause very slight transient

(temporary) corneal injury.

SKIN: Prolonged or repeated exposure may cause slight skin irritation. May

cause allergic skin reaction in susceptible individuals. Animal studies have

shown that skin contact with isocyanates may play a role in respiratory

sensitization. May stain skin. A single prolonged exposure is not likely

to result in the material being absorbed in harmful amounts.

INGESTION: Single dose oral toxicity is considered to be low. No hazards

3. HAZARDS IDENTIFICATION

Summary of content (8 pages)

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Page 1 of 8 MATERIAL SAFETY DATA SHEET 01/13/2005 1. IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE COMPANY/UNDERTAKING 24-Hour Emergency Phone Number: 517-636-4400 Product Name: Great Stuff GMID: 162845 Collective ID: 18 Material Type: Flammable - OCF Revised: 09/17/02 (sec. 5) The Dow Chemical Company, Midland, MI 48674 Customer Service: 800-366-4740 2.
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MATERIAL SAFETY DATA SHEET Page 2 of 8 01/13/2005 Great Stuff anticipated from swallowing small amounts incidental to normal handling operations. INHALATION: At room temperature, PMDI vapors are minimal due to low vapor pressure. However, certain operations may generate vapor or aerosol concentrations sufficient to cause irritation or other adverse effects. Excessive exposure may cause irritation to upper respiratory tract and lungs, and pulmonary edema (fluid in the lungs).
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MATERIAL SAFETY DATA SHEET Page 3 of 8 01/13/2005 Great Stuff exposure should be observed for 24-48 hours for signs of respiratory distress. 5. FIRE-FIGHTING MEASURES FLAMMABLE PROPERTIES FLASH POINT: -156F, -104C METHOD USED: Estimated AUTOIGNITION TEMPERATURE: NA FLAMMABILITY LIMITS LFL: NA UFL: NA HAZARDOUS COMBUSTION material in addition Hazardous combustion oxides, isocyanates, PRODUCTS: During a fire, smoke may contain the original to unidentified toxic and/or irritating compounds.
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MATERIAL SAFETY DATA SHEET Page 4 of 8 01/13/2005 Great Stuff PROTECT THE ENVIRONMENT: Contain liquid to prevent contamination of soil, surface water or ground water. Keep out of ditches, sewers, and water supplies. Should the product enter sewers or drains, it should be pumped into a covered, vented container; the cover should be placed loosely on the container but not made pressure tight. Move to a well-ventilated area. Emergency services may need to be called to assist in the cleanup operation.
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MATERIAL SAFETY DATA SHEET Page 5 of 8 01/13/2005 Great Stuff contained breathing apparatus). For emergency response or for situations where the atmospheric level is unknown, use an approved positive-pressure self-contained breathing apparatus. EXPOSURE GUIDELINES(S): Methylene bisphenyl isocyanate (MDI): PEL is 0.02 ppm Ceiling. ACGIH TLV is 0.005 ppm TWA and OSHA Isobutane: ACGIH TLV and OSHA PEL are 800 ppm. Propane: ACGIH TLV is 2500 ppm TWA and OSHA PEL is 1000 ppm.
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MATERIAL SAFETY DATA SHEET Page 6 of 8 01/13/2005 Great Stuff TOXICOLOGICAL INFORMATION (See Section 3 for Potential Health Effects) ACUTE: SKIN: The LD50 for skin absorption in rabbits is > 2000 mg/kg. INGESTION: The oral LD50 for rats is > 10,000 mg/kg. MUTAGENICITY (EFFECTS ON GENETIC MATERIAL): Mutagenicity data on MDI are inconclusive. MDI was weakly positive in some in-vitro (test tube) studies; other in-vitro studies were negative. A mutagenicity study in animals was negative.
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MATERIAL SAFETY DATA SHEET Page 7 of 8 01/13/2005 Great Stuff For additional information, refer to: - Handling & Storage Information, MSDS Section 7. - Stability & Reactivity Information, MSDS Section 10. - Regulatory Information, MSDS Section 15. As a service to its customers, Dow can provide names of information resources to help identify waste management companies and other facilities which recycle, reprocess or manage chemicals or plastics, and that manage used drums.
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MATERIAL SAFETY DATA SHEET Page 8 of 8 01/13/2005 Great Stuff Isobutane Propane 75-28-5 74-98-6 MA. NJ, PA MA. NJ, PA MA=Massachusetts Right to Know Substance List NJ2=New Jersey Environmental Hazardous Substance NJ3=New Jersey Workplace Hazardous Substance PA1=Pennsylvania Hazardous Substance PA3=Pennsylvania Environmental Hazardous Substance --------------------OSHA HAZARD COMMUNICATION STANDARD: This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.