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MSDS Material Safety Data Sheet
CAS

4253-34-3
17689-77-9

File Name: 4253-34-3.asp

Commercial Food Equipment Service Association                                     P_0000000250     D_0000030314




DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 1 of 7
DOW CORNING(R) 732 MULTI -PURPOSE SEALANT CLEAR

1. IDENTIFICATION OF THE SUBSTANCE AND OF THE COMPANY

24 Hour Emergency Telephone: (989) 496-5900
Dow Corning Corporation
South Saginaw Road Customer Service: (989) 496-6000
Midland, Michigan 48686 Product Disposal Information: (989) 496-6315
CHEMTREC: (800) 424-9300

MSDS No.: 01890573 Revision Date: 2002/11/26

Generic Description: Silicone elastomer
Physical Form: Paste
Color: Colorless
Odor: Acetic acid odor

NFPA Profile: Health 2 Flammability 1 Instability/Reactivity 0

Note: NFPA = National Fire Protection Association
2. OSHA HAZARDOUS COMPONENTS

CAS Number Wt % Component Name

4253-34-3 1.0 - 5.0 Methyltriacetoxysilane

17689-77-9 1.0 - 5.0 Ethyltriacetoxysilane

The above components are hazardous as defined in 29 CFR 1910.1200.

3. EFFECTS OF OVEREXPOSURE

Acute Effects

Eye: Direct contact may cause moderate irritation.

Skin: May cause moderate irritation.

Inhalation: Irritates respiratory passages very slightly.

Oral: Low ingestion hazard in normal use.

Prolonged/Repeated Exposure Effects

Skin: No known applicable information.

Inhalation: No known applicable information.

Oral: No known applicable information.

Signs and Symptoms of Overexposure

No known applicable information.

Medical Conditions Aggravated by Exposure
Commercial Food Equipment Service Association P_0000000250 D_0000030314




DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 2 of 7
DOW CORNING(R) 732 MULTI -PURPOSE SEALANT CLEAR

No known applicable information.

The above listed potential effects of overexposure are based on actual data, results of studies performed upon similar
compositions, component data and/or expert review of the product. Please refer to Section 11 for the detailed toxicology
information.
4. FIRST AID MEASURES

Eye: Immediately flush with water for 15 minutes. Get medical attention.

Skin: Remove from skin and wash thoroughly with soap and water or waterless cleanser. Get
medical attention if irritation or other ill effects develop or persist.

Inhalation: No first aid should be needed.

Oral: No first aid should be needed.

Comments: Treat according to person's condition and specifics of exposure.

5. FIRE FIGHTING MEASURES

Flash Point: Not applicable.

Autoignition Not determined.
Temperature:

Flammability Limits in Air: Not determined.

Extinguishing Media: Carbon dioxide (CO2). Water spray. Dry chemical. Foam. Water can be used to cool
fire exposed containers.

Fire Fighting Measures: Self-contained breathing apparatus and protective clothing should be worn in fighting
large fires involving chemicals. Determine the need to evacuate or isolate the area
according to your local emergency plan.

Unusual Fire Hazards: None.

Hazardous Decomposition Products

Thermal breakdown of this product during fire or very high heat conditions may evolve the following hazardous
decomposition products: Silicon dioxide. Carbon oxides and traces of incompletely burned carbon compounds.
Hydrogen. Formaldehyde.

6. ACCIDENTAL RELEASE MEASURES

Containment/Clean up: Sections 13 and 15 of this MSDS provide information regarding certain federal and state
requirements. Wipe up or scrape up and contain for salvage or disposal. Observe all
personal protection equipment recommendations described in Sections 5 and 8. Local,
state and federal laws and regulations may apply to releases and disposal of this
material, as well as those materials and items employed in the cleanup of releases. You
will need to determine which federal, state and local laws and regulations are applicable.
Commercial Food Equipment Service Association P_0000000250 D_0000030314




DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 3 of 7
DOW CORNING(R) 732 MULTI -PURPOSE SEALANT CLEAR

Note: See section 8 for Personal Protective Equipment for Spills. Call Dow Corning Corporation, (989) 496-5900, if
additional information is required.
7. HANDLING AND STORAGE

Use with adequate ventilation. Product evolves acetic acid (HOAc) when exposed to water or humid air. Provide
ventilation during use to control HOAc within exposure guidelines or use respiratory protection. Avoid eye contact.
Avoid skin contact.

Keep container closed and store away from water or moisture.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

Component Exposure Limits

CAS Number Component Name Exposure Limits

4253-34-3 Methyltriacetoxysilane See acetic acid comments.

17689-77-9 Ethyltriacetoxysilane See acetic acid comments.

Acetic acid is formed upon contact with water or humid air. Provide adequate ventilation to control exposures
within guidelines of OSHA PEL: TWA 10 ppm and ACGIH TLV: TWA 10 ppm, STEL 15 ppm.

Engineering Controls

Local Ventilation: Recommended.
General Ventilation: Recommended.

Personal Protective Equipment for Routine Handling

Eyes: Use proper protection - safety glasses as a minimum.

Skin: Wash at mealtime and end of shift. Contaminated clothing and shoes should be removed
as soon as practical and thoroughly cleaned before reuse. Chemical protective gloves
are recommended.

Suitable Gloves: Silver Shield(R). 4H(R).

Inhalation: No respiratory protection should be needed.

Suitable Respirator: None should be needed.

Personal Protective Equipment for Spills

Eyes: Use proper protection - safety glasses as a minimum.

Skin: Wash at mealtime and end of shift. Contaminated clothing and shoes should be removed
as soon as practical and thoroughly cleaned before reuse. Chemical protective gloves
are recommended.
Commercial Food Equipment Service Association P_0000000250 D_0000030314




DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 4 of 7
DOW CORNING(R) 732 MULTI -PURPOSE SEALANT CLEAR

Inhalation/Suitable No respiratory protection should be needed.
Respirator:

Precautionary Measures: Avoid eye contact. Avoid skin contact. Use reasonable care.

Comments: Product evolves acetic acid (HOAc) when exposed to water or humid air. Provide
ventilation during use to control HOAc within exposure guidelines or use respiratory
protection.


Note: These precautions are for room temperature handling. Use at elevated temperature or aerosol/spray applications may
require added precautions.

9. PHYSICAL AND CHEMICAL PROPERTIES

Physical Form: Paste
Color: Colorless
Odor: Acetic acid odor
Specific Gravity @ 25掳C: 1.04
Viscosity: Not determined.
Freezing/Melting Point: Not determined.
Boiling Point: Not determined.
Vapor Pressure @ 25掳C: Not determined.
Vapor Density: Not determined.
Solubility in Water: Not determined.
pH: Not determined.
Volatile Content: Not determined.

Note: The above information is not intended for use in preparing product specifications. Contact Dow Corning before writing
specifications.

10. STABILITY AND REACTIVITY

Chemical Stability: Stable.

Hazardous Hazardous polymerization will not occur.
Polymerization:
Conditions to Avoid: None.

Materials to Avoid: Water, moisture, or humid air can cause hazardous vapours to form as described in
Section 8 . Oxidizing material can cause a reaction.

11. TOXICOLOGICAL INFORMATION

Special Hazard Information on Components

No known applicable information.

12. ECOLOGICAL INFORMATION

Environmental Fate and Distribution
Commercial Food Equipment Service Association P_0000000250 D_0000030314




DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 5 of 7
DOW CORNING(R) 732 MULTI -PURPOSE SEALANT CLEAR

Complete information is not yet available.

Environmental Effects

Complete information is not yet available.

Fate and Effects in Waste Water Treatment Plants

Complete information is not yet available.

Ecotoxicity Classification Criteria
Hazard Parameters (LC50 or EC50) High Medium Low
Acute Aquatic Toxicity (mg/L) <=1 >1 and <=100 >100
Acute Terrestrial Toxicity <=100 >100 and <= 2000 >2000
This table is adapted from "Environmental Toxicology and Risk Assessment", ASTM STP 1179, p.34, 1993.

This table can be used to classify the ecotoxicity of this product when ecotoxicity data is listed above. Please read the other information presented
in the section concerning the overall ecological safety of this material.

13. DISPOSAL CONSIDERATIONS

RCRA Hazard Class (40 CFR 261)

When a decision is made to discard this material, as received, is it classified as a hazardous waste? No


State or local laws may impose additional regulatory requirements regarding disposal.

Call Dow Corning Corporate Environmental Management, (989) 496-6315, if additional information is required.

14. TRANSPORT INFORMATION

DOT Road Shipment Information (49 CFR 172.101)

Not subject to DOT.

Ocean Shipment (IMDG)

Not subject to IMDG code.

Air Shipment (IATA)

Not subject to IATA regulations.

Call Dow Corning Transportation, (989) 496-8577, if additional information is required.
15. REGULATORY INFORMATION

Contents of this MSDS comply with the OSHA Hazard Communication Standard 29 CFR 1910.1200.

TSCA Status: All chemical substances in this material are included on or exempted from listing on the TSCA
Inventory of Chemical Substances.
Commercial Food Equipment Service Association P_0000000250 D_0000030314




DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 6 of 7
DOW CORNING(R) 732 MULTI -PURPOSE SEALANT CLEAR

EPA SARA Title III Chemical Listings

Section 302 Extremely Hazardous Substances:

None.

Section 304 CERCLA Hazardous Substances:

None.

Section 312 Hazard Class:
Acute: Yes
Chronic: No
Fire: No
Pressure: No
Reactive: No

Section 313 Toxic Chemicals:

None present or none present in regulated quantities.

Supplemental State Compliance Information

California

Warning: This product contains the following chemical(s) listed by the State of California under the Safe Drinking
Water and Toxic Enforcement Act of 1986 (Proposition 65) as being known to cause cancer, birth defects or other
reproductive harm.


None known.

Massachusetts

CAS Number Wt % Component Name

7631-86-9 10.0 - 30.0 Silica, amorphous


New Jersey

CAS Number Wt % Component Name

70131-67-8 > 60.0 Dimethyl siloxane, hydroxy-terminated

7631-86-9 10.0 - 30.0 Silica, amorphous

4253-34-3 1.0 - 5.0 Methyltriacetoxysilane

17689-77-9 1.0 - 5.0 Ethyltriacetoxysilane


Pennsylvania
Commercial Food Equipment Service Association P_0000000250 D_0000030314




DOW CORNING CORPORATION
Material Safety Data Sheet
Page: 7 of 7
DOW CORNING(R) 732 MULTI -PURPOSE SEALANT CLEAR

CAS Number Wt % Component Name

70131-67-8 > 60.0 Dimethyl siloxane, hydroxy-terminated

7631-86-9 10.0 - 30.0 Silica, amorphous



16. OTHER INFORMATION

Prepared by: Dow Corning Corporation

These data are offered in good faith as typical values and not as product specifications. No warranty, either
expressed or implied, is hereby made. The recommended industrial hygiene and safe handling procedures are
believed to be generally applicable. However, each user should review these recommendations in the specific
context of the intended use and determine whether they are appropriate.

(R) indicates Registered Trademark

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