Vòng chắn dầu FFKM – Fluorine rubber skeleton oil seal FFKM

Butadiene rubber (NBR): excellent oil resistance, temperature resistance of 120 degrees, generally black. The default hardness is 70 degrees, with good ductility.

Silicone rubber (VQM): pure silica gel, colorless, odorless, non-toxic, temperature resistant to 200 degrees. There is also red silica gel, which defaults to 60 degrees and has excellent ductility.

Fluorine rubber (FKM / FFKM): corrosion resistance, high temperature resistance, default hardness of 75 degrees, poor ductility, high temperature resistance of 260 degrees. There is also FFKM, high temperature resistance 300 degrees, corrosion resistance.