EPDM
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EPDM 4045M Ethylene Propylene Diene Monomer DSM 8340A 4551A 2340A
The main characteristic of EPDM is its superior ability to resist oxidation, ozone and erosion. Because ternary ethylpropylene rubber belongs to the polyene (PA66) hydrocarbon family, it has excellent vulcanization characteristics. Of all rubber, EPDM has the lowest specific gravity. It can absorb a lot of fillers and oil with little effect on properties. So you can make rubber compounds that are cheap.