What is the material of the outer ring of the oil filter?
Rubber is classified according to oil resistance (polar rubber): CR, NBR, HNBR, ACM, AEM, CSM, FKM, CO, FMVQ, PUR. Non oil resistant rubber classification (non polar rubber): NR, IR, BR, SBR, IIR, EPR, EPDM.
The combustion resistance of Ding Qing rubber increases with the increase of propylene content. Epichlorohydrin rubber has better resistance to ignition and oil than butyl rubber. Resistance to mixing burning oil: fluorosilicone rubber, FMVQ and fluorine rubber,
. Flame resistance: fluorine rubber FKM and fluorosilicone rubber FMVQ, the best resistance to fuel oil. Chloroprene rubber and chlorinated polyethylene rubber CPE have the worst combustion resistance.
Oil resistance usually refers to non polar oils, fuel oil, mineral oil and synthetic lubricating oil.
