Irabha ye-ethylene propylene (ikakhulukazi irabha ye-ethylene propylene) isetshenziswa ngobuningi njenge-viscosity index modifier (OVI noma VII) kumafutha amaningi e-hydrocarbon ukuze kuthuthukiswe ukuthambisa kwamafutha emazingeni okushisa aphezulu naphansi nokwenza uwoyela usebenze kangcono ezimeni ezimile nezishintshashintshayo.
Irabha ye-ethylene propylene idinga amandla aphezulu okujiya, indawo yokuthela ephansi kanye nenkomba ephansi yokuzinza kwe-shear lapho isetshenziswa njengesithasiselo esilungisa izinto zokugcoba, uphethiloli kanye nodizili.

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