EPDM rubber has good mechanical properties and a very wide temperature range of application. Due to its rich structure, EPDM has very good resistance to ozone, weathering and aging, but is absolutely not resistant to mineral oils. Mineral oils and fats as well as animal and vegetable oils and fats contribute to unacceptably strong swelling. The special structure of the softeners also allows the use of EPDM based rubber seals in glycol based brake fluids (SL-DOT4). Use in these environments requires compliance with local tolerance regulations and appropriate approvals. Radiation resistance is relatively high.

Below are data on the resistance of EPDM rubber products to certain media.

RESISTANT TO:	NO RESISTANCE TO:
hot water water vapor a large number of organic and inorganic bases and acids oxidizing environment organic and inorganic alcohols ketones flame-retardant hydraulic fluids type HSC, HSD glycol based brake fluids freon R134a detergents, sodium (soda) and potassium alkalis saline solutions and oxidizing media large amount of solvents (e.g. alcohol=alcohols, ketones, ester)	aliphatic hydrocarbons (propane, butane, gasoline) mineral oils and fats aromatic and chlorinated hydrocarbons vegetable and animal oils and fats biodegradable hydraulic fluids highly flammable pneumatic fluids
TEMPERATURE RANGE: -20°C to +120 °C

Scope of EPDM products

The main area of application of EPDM is as a rubber part in mechanical seals (bellows, O-rings) in pumping equipment. Moreover, EPDM is the most suitable material for hot water or hot steam applications (must be lubricated with silicone grease during installation).

Primary use:
- special parts for washing installations;
- bayonet and piston seals;
- O-rings;
- seals for brake systems of cars.

Basic physical and mechanical characteristics of EPDM

Properties	unit of measurement	Meaning
Hardness	SHORE A	85±5
Density	g/cm³	1.22±0.02
Tensile strength	N/mm²	≥12
Tensile strength	%	≥80
Residual deformation 100oC/22h	%	≤10
Wide tear strength	N/mm	ten
rebound elasticity	%	38
Abrasion	mm³	140
Minimum application temperature	°C	-twenty
Maximum application temperature	°C	+120