ASTM D2000 Classification: CA, DA
Temperature Range:
Sulphur Cured: -50°C to +120°C (-60°F to +250°F)
Temperature Range:
Peroxide Cured: -50° C to +150°C (-60°F to +300°F)
Properties
Ethylene propylene rubber is an elastomer prepared from ethylene and propylene monomers (ethylene propylene copolymer) and at times with an amount of a third monomer (ethylene propylene terpolymers).
EPM and EPDM have a great acceptance in the sealing world because of its excellent resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight. These compounds also withstand the effect of brake fluids and Skydrol and other phosphate ester-based hydraulic fluids. EPDM compounds are not recommended for gasoline, petroleum oil and grease, or hydrocarbon environments.
Special EPDM compounds have good resistance to steam.
Applications
EPDM Sulphur cured
Inexpensive material for normal use, maximum temperature of up to +120°C (+250°F).
EPDM Peroxide cured
For hot water, vapor, alcohols, ketones, engine coolants, organic and inorganic acids and bases. Not resistant to mineral oils. For maximum temperatures of up to +150°C (+300°F).
| EMI Reference | Specification | Hardness IRHD | SG | Tensile Strength (MPa) | Elongation at Break % | Colour |
|---|---|---|---|---|---|---|
| E404 | ASTM D2000 | 40° | 1.06 | 9 | 500 | Black |
| E509 | High Grade | 50° | 1.11 | 10 | 400 | Black |
| E605 | Commercial | 60° | 1.3 | 7 | 220 | Black |
| E606 | Food Quality | 60° | 1.39 | 6 | 480 | White |
| E609 | High Grade | 60° | 1.22 | 9 | 250 | Black |
| E701 | Commercial | 70° | 1.4 | 4 | 200 | Black |
| E709 | High Grade | 70° | 1.24 | 9 | 210 | Black |
| E707 | WRC Approved | 70° | 1.12 | 10 | 400 | Black |
| E807 | WRC Approved | 80° | 1.17 | 10 | 250 | Black |
