Material Safety Data Sheet

MSDS No: 02824426

Current Version: 12/19/96

Generic Description:
Physical Form:
Color:
Odor:
NFPA Profile: 

Silicone elastomer
Paste
Colorless to pale yellow
Some odor
Health 1 Flammability 1 Reactivity 0 

Note: NFPA = National Fire Protection Association

CAS Number

Wt%

Component

Exposure Limits

007631869

10

Silica, amorphous

Observe particulate limits. OSHA PEL: TWA 15 mg/m3 total dust, 5 mg/m3 respirable fraction. ACGIH TLV: TWA 10 mg/m3 inhalable particulate, 3 mg/m3 respirable particulate.

022984549

4

Methyl tri(ethylmethylketoxime) silane

See ethyl methyl ketoxime comments.

083817725

1

Di (ethylmethylketoxime) methoxymethyl silane

See ethyl methyl ketoxime and methyl alcohol comments.

101371000

.5

Ethoxy tri(ethylmethylketoxime) silane

See ethyl alcohol and ethyl methyl ketoxime comments.

093917750

.4

Diethoxy di(ethylmethylketoxime) silane

See ethyl alcohol and ethyl methyl ketoxime comments.

000096297

.1

Methylethylketoxime

Vendor guide: TWSA 3 ppm, STEL 10 ppm. AIHA WEEL: TWA 10 ppm.

034206401

.1

Tetra (methylethylketoxime) silane

See ethyl methyl ketoxime comments.

101371011

.1

Triathoxy (ethylmethylketoxime) silane

See ethyl alcohol and ethyl methyl ketoxime comments.

Comments

Methyl alcohol forms on contact with water or humid air. Provide adequate ventilation to control exposures within guidelines of OSHA PEL: TWA 200 ppm and ACGIH TLV-skin: TWA 200 ppm, STEL 250 ppm. Ethyl methyl ketoxime is formed upon contact with water or humid air. Provide adequate ventilation to control exposures within the following exposure guidelines: Vendor guide TWA: 3 ppm, STEL: 10 ppm; AIHA WEEL TWA: 10 ppm. Ethyl alcohol is formed upon contact with water or humid air. Provide adequate ventilation to control exposures within guidelines of OSHA PEL and ACGIH TLV: TWA 1000 ppm.

Acute Effects

Eye:

Direct contact irritates slightly with redness and swelling.

Skin:

A single short exposure (less than 24 hours) may irritate. Repeated prolonged contact (24 to 48 hours) may irritate moderately. Product contains oximes which are possible skin sensitizers.

Inhalation:

Vapor overexposure may cause drowsiness, injure blood, liver and may irritate eyes, nose and throat.

Oral:

Repeated Exposure Effects

Skin:

Inhalation:

Oral:

Special Hazards

This material contains the following components with the special hazards listed below.

Carcinogens

None Known

Teratogens

None Known

Mutagens

None Known

Reproductive Toxins

None Known

Sensitizers

022984549

4

Methyl tri(ethylmethylketoxime) silane

Possible Skin Sensitizer

083817725

1

Di (ethylmethylketoxime) methoxymethyl silane

Possible Skin Sensitizer

101371000

.5

Ethoxy tri (ethylmethylketoxime) silane

Possible Skin Sensitizer

093917750

.4

Diethoxy di(ethylmethylketoxime) silane

Possible Skin Sensitizer

000096297

.1

Methylethylketoxime

Possible Skin Sensitizer

034206401

.1

Tetra (methylethylketoxime) silane

Possible Skin Sensitizer

101371011

.1

Triathoxy (ethylmethylketoxime) silane

Possible Skin Sensitizer

Comments:

Methyl Ethyl Ketoxime (MEKO) is formed upon contact with water or humid air. Male rodents exposed to MEKO vapor throughout their lifetime developed liver cancer. Additional testing is planned by the MEKO supplier to determine any relevance to humans. Until more data is known, exposure levels should be maintained as low as achievable. Please read the additional information below.

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.

Eye:

Immediately flush with water for 15 minutes.

Skin:

Remove from skin and immediately flush with water for 15 minutes. Get medical attention if irritation or ill effects develop or persist.

Inhalation:

Remove to fresh air. Get medical attention if ill effects persist.

Oral:

Get medical attention.

Comments:

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

Flash Point (Closed Cup):

Not applicable - Solid.

Autoignition Temperature:

Not Determined

Flammability Limits in Air:

Not Determined

Extinguishing Media:

On large fires use dry chemical, foam or water spray. On small fires use carbon dioxide (CO2), dry chemical or water spray. Water can be used to cool fire exposed containers.

Fire Fighting Procedures:

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. Use water spray to keep fire exposed containers cool.

Unusual Fire Hazards:

None

Containment/Clean-up:

Observe all personal protection equipment recommendations described in Sections 5 and 8. Wipe up or scrape up and contain silicone materials, even in small quantities, may present a slip hazard. Final cleaning may require use of steam, solvents or detergents. 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. Disposal of collected product, residues, and cleanup materials may be governmentally regulated. Observe all applicable local, state, and federal waste management regulations.

Handling:

Use with adequate ventilation. Product evolves methyl alcohol when exposed to water or humid air. Provide ventilation during use to control exposure within Section 2 guidelines or use air-supplied or self-contained breathing apparatus. Product evolves methyl ethyl ketoxime (MEKO) when exposed to water or humid air. Provide ventilation during use to control methyl ethyl ketoxime (MEKO) within exposure guidelines (See Section 2) or use respiratory protection. Product evolves ethyl alcohol on exposure to water or humid air. Provide ventilation during use to control ethanol within exposure guidelines (See Section 2) or use respiratory protection. Avoid breathing vapor. Keep container closed. Avoid eye contact. Do not take internally. Avoid skin contact.

Storage:

Keep container closed and store away from water or moisture.

Engineering Controls

Local exhaust:

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. If skin contact occurs, change contaminated clothing as soon as possible and thoroughly flush affected areas with cool water. Chemical protective gloves are recommended.

Suitable Gloves:

Butyl Rubber. Natural Rubber. Neoprene Rubber^®. Nitrile Rubber^®. Silver Shield^®. 4H^®.

Inhalation:

Use respiratory protection unless adequate local exhaust ventilation is provided or air sampling data show exposures are  within recommended exposure guidelines. Industrial Hygiene Personnel can assist in judging the adequacy of existing engineering controls.

Suitable Respirator:

Organic Vapor/Dust/Mist Type

Personal Protective Equipment For Spills

Eyes:

Use proper protection - safety glasses as a minimum.

Skin:

Wash at mealtime and end of shift. If skin contact occurs, change contaminated clothing as soon as possible and thoroughly flush affected areas with cool water. Chemical protective gloves are recommended.

Inhalation / Suitable Respiratory:

Use respiratory protection unless adequate local exhaust ventilation is provided or air sampling data show exposures are within recommended exposure guidelines. Industrial Hygiene Personnel can assist in judging the adequacy of existing engineering controls.

Precautionary Measures:

Avoid eye contact. Avoid skin contact. Avoid breathing vapor. Keep container closed. Do not take internally.

Comments:

Product evolves methyl alcohol when exposed to water or humid air. Provide ventilation during use to control exposure within Section 2 guidelines or use air-supplied or self-contained breathing apparatus. Product evolves methyl ethyl ketoxime (MEKO) when exposed to water or humid air. Provide ventilation during use to control methyl ethyl ketoxime (MEKO) within exposure guidelines (See Section 2) or use respiratory protection. Product evolves ethyl alcohol on exposure to water or humid air. Provide ventilation during use to control ethanol within exposure guidelines (See Section 2) or use respiratory protection.

Physical form:

Paste

Color:

Colorless to pale yellow

Odor:

Some odor

Specific Gravity @ 25C:

1.04

Viscosity:

Not Applicable.

Freezing/Melting Point:

Not Determined.

Boiling Point:

Not Applicable.

Vapor Pressure @ 25C:

Not Applicable.

Vapor Density:

Not Applicable.

Solubility in Water:

Not Determined.

pH:

Not Applicable.

Volatile content:

Not Applicable.

Chemical Stability:

Stable.

Hazardous Polymerization:

Hazardous polymerization will not occur.

Conditions to Avoid:

None.

Materials to Avoid:

Oxidizing material can cause a reaction. Water, moisture, or humid air can cause hazardous vapors to form as described in Section 2.

DOT Information (49CFR 172.101)

Proper Shipping Name:

Not Applicable

Hazard Technical Name:

Not Applicable

Hazard Class:

Not Applicable

UN/NA

0000

Packing Group:

NA

Acute:

Y

Chronic:

Y

Fire:

N

Pressure:

N

Reactive:

N

CAS Number

Wt%

Component

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.

     None known.

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 birth defects or other reproductive harm.

Massachusetts

007631869

10

Silica, amorphous

New Jersey

070131678

52

Dimethyl siloxane, hydroxy-terminated

063148629

30

Polydimethylsiloxane

022984549

4

Methyl tri(ethylmethylketoxime) silane

083817725

1

Di (ethylmethylketoxime) methoxymethyl silane

007631869

10

SILICA, AMORPHOUS FUMED; #1655

Pennsylvania

070131678

52

Dimethyl siloxane, hydroxy-terminated

063148629

30

Polydimethylsiloxane

022984549

4

Methyl tri(ethylmethylketoxime) silane

007631869

10

Silica, amorphous