Material

EPDM Elastomer

Ethylene propylene diene monomer rubber

EPDM is an elastomer used wherever outdoor seals are exposed to various environmental influences and must still retain their function and tightness.

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Abbreviation

EPDM

Temperature

up to +150 °C

Strength

UV · Ozone · Weathering

Application

Outdoor & water / drinking water

Overview

EPDM in use

EPDM is an elastomer with very good resistance to UV, ozone and weathering for a wide range of outdoor applications. Typical areas of use are outdoor structures, machinery and plant, the automotive sector and means of transport.

Where other materials become brittle, crack or lose their tightness under UV and weathering, EPDM retains its function. The material also remains flexible at low temperatures, can be used in water and can be supplied in an electrically insulating version on request.

Properties

Properties of EPDM

Ideal for outdoor use: very good resistance to UV, ozone and weathering
Good ageing resistance
Conformities and approvals for drinking water to KTW-BWGL, EN 16421 (W270)
Conformities and approvals for food to FDA, BfR and EC 1935/2004
Can be used in water (seawater)
Electrically insulating or conductive (EMC), with specific volume resistivity on request
Sulphur-cured (standard): temperature resistant up to approx. +100 °C
Peroxide-cured: temperature resistant up to approx. +150 °C

Chemical resistance

Resistance of EPDM

1 = very good 2 = good 3 = limited 4 = poor 5 = very poor

Medium	Rating	Description
Brake fluid	2	Good resistance
Oils & greases	5	Very poor resistance
Fuels	5	Very poor resistance
Acids, dilute	2	Good resistance
Alkalis, dilute	3	Limited resistance
Cleaning agents	4	Poor resistance
Paints & varnishes	3	Limited resistance