EPDM is an ethylene propylene diene rubber. It has good tensile strength and breaking strength. However, it is not resistant to petroleum products or concentrated acids.
Advantages of EPDM rubber:
- Very good resistance to: bad weather, heat, cold,
- Ozone, aging,
- Acids, polar solvents (water, ketones, alcohols, glycols).
- Electrical insulation
- Limits: Poor resistance to fuels, chlorinated, aromatic or aliphatic solvents, petroleum derivatives and oils.
- fire resistance.
- Flame spread is low.
Example of EPDM applications:
- Window seal
- Playground floors
Sectors of use of EPDM:
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|GENERAL PROPERTIES||min - max|
|Hardness ShA||30 - 90 ShA|
|Hardness IRHD||30 - 90 IRHD|
|Tensile Strength||8 - 20|
|Elongation at break||100% - 900%|
|Continuous Temperature||-55 C° - 130C°|
|Point Température||-55 C° - 140C°|
|Resistance to solvents|
|Resistance to acids|
Typical applications include accumulator bladders, cable connectors and insulators, diaphragms, gaskets, hoses and seals.
Potable water (WRC/WRAS) grades are available as well as ‘Food Quality’ mixes suitable for the food and pharmaceutical industries.