Material Safety Data Sheet - Liquid Silicone Rubber (LSR) Systems

MATERIAL SAFETY DATA SHEET

LIQUID SILICONE RUBBER (LSR) SYSTEMS

EFFECTIVE DATE: 04/30/1998

I. PRODUCT IDENTIFICATION

A. Manufactured by:

APPLIED SILICONE CORPORATION

270 Quail Court

Santa Paula, CA 93060

(805) 525-5657

(805) 933-1675 FAX

For chemical emergencies please call: CHEMTREC -- United States: (800) 424-9300.

International collect calls: 703-527-3887

B. Trade Name: Liquid Silicone Rubber (LSR), Part A and Part B
C. Chemical Name and Synonyms: Part A: reinforced dimethyl methylvinyl siloxanes. Part B: reinforced dimethyl methylhydrogen siloxanes.
D. Chemical Formula: N/A (polymeric), both Part A and Part B.
E. Chemical Family: Part A: reinforced organopolysiloxane, Part B: organopolysiloxane
F. DOT (CFR 49) Hazard Classification: Not hazardous per CFR 49

II. PRODUCT COMPOSITION

Dimethyl Silicone Elastomer Base, 100%

III. PHYSICAL PROPERTIES - PART A

A. Boiling Point: >260°C
B. Specific Gravity (water = 1): 1.1
C. Vapor Pressure at 25°C: >1 mm Hg - essentially non-volatile
D. Vapor Density (Air = 1): N/A - essentially non-volatile
E. Water Solubility: nil
F. Evaporation Rate (Ethyl Ether = 1): nil
G. Appearance and Odor: Colorless, translucent, viscous, paste

IV. PHYSICAL PROPERTIES - PART B

A. Boiling Point: >260°C
B. Specific Gravity (water = 1): 1.1
C. Vapor Pressure at 25°C: negligible - essentially non-volatile
D. Vapor Density (Air = 1): N/A - essentially non-volatile
E. Water Solubility: nil
F. Evaporation Rate (Ethyl Ether = 1): N/A
G. Appearance and Odor: Colorless, translucent, viscous, paste.

IV. FIRE AND EXPLOSION INFORMATION - PART A AND PART B

A. Flash Point (Open Cup): Part A: 190°C; Part B: 95°C
B. Flammable Limits in Air, % Volume: Not measured
C. Extinguishing Media: Use water fog, dry chemical, foam, or CO₂
D. Special Fire Fighting Procedures: Fire fighters should wear self-contained breathing apparatus and full protective clothing. Use water spray to cool nearby containers.
E. Unusual Fire and Explosion Hazards: Part B may generate Hydrogen gas to create an explosion hazard.

V. HEALTH HAZARD AND PROTECTION DATA - PART A AND PART B

A. Personal Protection Recommended: Wear protective goggles to prevent eye contact. Under recommended conditions of use, no other protection should be required.
B. Signs and Symptoms of Exposure: The primary route of exposure is eye contact. Direct eye contact can cause a transitory irritation, but it is not injurious. This irritation may persist for up to 24 hours.
Experience with this material has not indicated any serious effects related to exposure by any route.
C. First Aid for Exposure:
1. Eye contact: Flush with water. Get medical attention if irritation persists.
2. Skin contact: Not considered a potential hazard. If irritation occurs, wash thoroughly with soap and water.
3. Ingestion: Get medical attention
4. Inhalation: Not considered a potential hazard.
D. Occupational Exposure Limits: Because of the low health hazard, no exposure limits have been established.
E. Eye irritant in raw state.
F. Medical Conditions Generally Aggravated by Exposure: Pre-existing eye disorders.
G. Toxicity: Because of the low toxicity, specific toxicity data is unavailable.

VI. SPILL AND LEAK PROCEDURES - PART A AND PART B

Use personal protection recommended in section V to prevent personnel exposure.
Even small amounts of spilled material may present a slip hazard.
As required, dike with soil or other absorbent materials to prevent spread of spill. Mop or wipe up and place in appropriate containers and/or place absorbent material on spill and transfer absorbed solvent to appropriate containers. Clean any remaining slippery surfaces. Mop or swab with appropriate solvent or wash with mild caustic detergents.

VII. REACTIVITY DATA - PART A AND PART B

A. Stability: This material is chemically stable. Hazardous polymerization will not occur.
B. Materials to Avoid: Strong alkali contact with Part B may generate flammable hydrogen gas.
C. Hazardous Decomposition Products: Burning may liberate carbon monoxide, carbon dioxide and silicone dioxide.

VIII. OTHER INFORMATION AND PRECAUTIONS - PART A AND PART B

Store in a cool, dry place. Keep container closed and keep away from heat and flame. Do not lay container on its side.

To the best of our knowledge this material does not contain any substances listed by the state of California to cause cancer, birth defects, or other reproductive effects.

When this material is discarded, as received, it is not classified as a RCRA hazardous waste. state and local laws may impose additional regulatory requirements regarding disposal.

Consult and comply with federal, state, and local regulations concerning any release of hazardous materials into the water, water piping systems, ground, or air. Consult and comply with federal, state, and local regulations concerning removal of waste.

All information appearing herein is based upon data considered to be accurate. However, no warranty is expressed or implied regarding the accuracy of these data or the results to be obtained from the use thereof.