EPDM

Ethylene Propylene Rubber

Abbreviation: EPM, EPDM

Probably the most water resistant rubber available, and this resistance is maintained to high temperatures (up to 180C in steam for peroxide cures). The highest temperature resistance is achieved by using peroxide cured grades. Has excellent resistance to atmospheric ageing, oxygen and ozone up to about 150C. It has good resistance to most water-based chemicals and to vegetable-based hydraulic oils. However, it has very poor resistance to mineral oils and di-ester based lubricants.