Ethylene propylene rubber

Description

An elastomeric copolymer of ethylene and propylene. Ethylene-propylene rubber, or EPR, is a rubber-like material that can be cross-linked with peroxides. It is more expensive than EPDM but has better compression set. Ethylene propylene rubber is resistant to ozone, acids and alkalis and retains its elasticity over a wide temperature range

(-51 to 148C). EPR is used for gaskets, coated fabrics, footwear and for automobile and appliance parts.

Synonyms and Related Terms

ethylene-propylene rubber; EPR; EPM; goma de etileno- propileno (Esp.);

Risks

Combustible.

Physical and Chemical Properties

Soluble in most organic solvents. Resistant to mineral acids and alkalis.

Resources and Citations

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 306

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002

• Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000