Ethylene-Propylene (EPDM) (EPR)
This is a polymer of ethylene, propylene and a diene monomer. It has outstanding resistance to oxygen, ozone, and sunlight. Its resistance to polar International Standards such as phosphate esters, many ketones and alcohol. It has good electrical properties, low temperature flexibility, excellent heat,
water and steam resistance. Its resistance to petroleum products is poor. Useful temperature range is -58o F to +300o F (-50℃ to +150℃).