EPDM rubber (ethylene propylene diene monomer (M- class) rubber) is a synthetic rubber or an elastomer which is used in a wide range of applications. The letter E in the name of the rubber stands for ethylene, P for propylene, D for diene and M for its classification in ASTM standard D-1418, which means the rubber has a saturated chain of polymethylene. Dienes currently being used in the manufacturing of EPDM rubbers include dicyclopentadiene (DCPD), ethylidenenorbornene (ENB), and vinyl norbornene (VNB).

EPDM rubber (ethylene propylene diene monomer (M- class) rubber) is a synthetic rubber or an elastomer which is used in a wide range of applications. The letter E in the name of the rubber stands for ethylene, P for propylene, D for diene and M for its classification in ASTM standard D-1418, which means the rubber has a saturated chain of polymethylene. Dienes currently being used in the manufacturing of EPDM rubbers include dicyclopentadiene (DCPD), ethylidenenorbornene (ENB), and vinyl norbornene (VNB).