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 yongere amavuta mumavuta mubushyuhe bwinshi kandi buke kandi atume amavuta akora neza haba mubihe bihamye kandi bihamye.
Ibikoresho bya Ethylene propylene bisaba imbaraga zibyibushye cyane, gusuka hasi hamwe nigipimo gito cyo gutuza mugihe gikoreshwa nkicyongeweho cyo guhindura amavuta, lisansi na mazutu.

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