Ethylene propylene diene rubber (EPDM)

EPDM rubber is produced through copolymerisation of ethylene, propylene and a diene and can be cross-linked with sulphur or peroxides. Through cross-linking with peroxides, the resulting vulcanizate has an improved pressure permanent set. EPDM has a good oxygen, ozone and temperature resistance. The gluability of EPDM is strongly decreased due to the composition (ethylene, propylene). EPDM is characterised through an over-average chemical resistance, the mineral oil and grease resistance is however rather bad.

EPDM is for Shore-hardness Shore A 30-90 available.

Areas of application: In terms of quantity EPDM is mostly used in the automobile industry, e.g. for sealing profiles in doors and the boot, for windows and headlights, fender buffers, hoses and sealing elements. EPDM is also used with washing machines and dishwashers for seals and hoses due to its good hot water resistance. In addition EPDM has reached a high market share compared to CR as an excellent elastomer for building profiles due to its very good weather resistance.