Ethylene propylene rubber has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical performance, oil filling and room temperature fluidity. Ethylene propylene rubber products can be used for a long time at 120 ℃, and can be used briefly or intermittently at 150 - 200 ℃. The use temperature can be increased by adding appropriate antioxidant.

Epdm plastic is a terpolymer of ethylene, propylene and non conjugated dienes. it began commercial production in 1963. The annual consumption of the world is 800000 tons. The main characteristic of EPDM is its superior oxidation resistance, ozone resistance and corrosion resistance. As EPDM belongs to polyolefin family, it has excellent vulcanization characteristics. Of all rubbers, EPDM has the lowest specific gravity. It can absorb a large amount of filler and oil without affecting the characteristics. Therefore, a rubber compound with low cost can be prepared.