Ethylene propylene rubber

Description

An elastomeric copolymer of ethylene and propylene. Ethylene-propylene, or EPR, is a rubber-like material that can be crosslinked 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. See also ethylene propylene terpolymer (EPDM).

Synonyms and Related Terms

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

Other Properties

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

Hazards and Safety

Combustible.

Authority

• 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