Rubber ya Ethylene propylene (cyane cyane binary Ethylene propylene reberi) ikoreshwa mubwinshi nkumuhinduzi wa viscosity index modifier (OVI cyangwa VII) kumavuta menshi ya hydrocarubone kugirango amavuta agabanuke neza mubushyuhe bwinshi kandi buke kandi ashoboze amavuta gukora neza haba mubihe bihamye kandi bigenda neza.
Ibikoresho bya Ethylene propylene bisaba imbaraga zibyibushye cyane, gusuka hasi hamwe nigipimo gito cyo gutuza mugihe gikoreshwa nkibintu byongera amavuta, lisansi na mazutu.

Saba:
EPDM: CO 033 ； CO 034 ； CO 043 ； CO 054 ；