General Grade

Ethylene Propylene Rubber, commonly referred to as EPDM. This material is often used in hot water steam applications as well as in fire resistant fluids where synthetic oils are used. EPDM materials are also used in bases, acids and alcohols. EPDM is also used for brake fluids, but we recommend to observe local safety-regulations before installing an EPDM seal in breaking systems. EPDM is not resistant to mineral, vegetable and animal oils.

FDA Grade

EPDM products are also available with FDA grade in white colour, which is approved for usage in applications contact with foodstuffs.

Main Applications

Static and Dynamic seals, wipers, O-rings, Gaskets, Flange seals, rotary seal, rubber energisers. Cleaning and washing technology; Applications in food industry.

Physical properties - General Grade

Density	DIN 53479	g/cm3	1.22
Hardness	DIN 53505	Shore A	85
Tensile strength	DIN 53504	N/mm2	12.8
Elongation at Break	DIN 53504	%	130
Modulus 100%	DIN 53504	N/mm	6.2
Tear Strength	DIN 53507B	N/mm	3.2
Compression Set: 70h/RT	DIN 53517A	%	20.9
Compression Set: 22h/70°C	DIN 53517A	%	20.7
Compression Set: 22h/100°C	DIN 53517A	%	19.8
Compression Set: 22h/150°C	DIN 53517A	%	40.9
Min. service temperature		°C	-50
Max. service temperature		°C	130

Physical properties – RGD grade

Density	DIN 53479	g/cm3	1.39
Hardness	DIN 53505	Shore A	85
Tensile strength	DIN 53504	N/mm2	7.3
Elongation at Break	DIN 53504	%	374
Modulus 100%	DIN 53504	N/mm	4.2
Tear Strength	DIN 53507B	N/mm	5.8
Compression Set: 70h/RT	DIN 53517A	%	22.3
Compression Set: 22h/70°C	DIN 53517A	%	45.1
Compression Set: 22h/100°C	DIN 53517A	%	77.9
Min. service temperature		°C	-50
Max. service temperature		°C	100
Short time max. service temp. In Air		°C	130

Physical properties

• Water up to 70° - R
• Water up to 90° - S
• Steam - U
• HFA, HFB, HFC Fluids - R
• HFD Fluids - U
• Minerals / Vegetable Oils - R
• Silicone oils - S
• Biodegradable Oils - S
• Diesel Fuel - R
• Gasoline Fuel - S
• Alcohols -R
• Ozone, Oxygen - U
• Air up to 100° - R
• Air up to 150° - U

Key to chemical resistance: R=Resistance S-Suitable U=Unsuitable

Analysis and Evaluation

The mentioned properties are only valid for test pieces of the corresponding ISO, Din, and ASTM standards. They cannot be directly related to seals, gaskets and other sealing products and should be used only as a general guide. Customer required properties for the Rubber materials can be produced and analysised.