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Introduction to Fluororubber (FPM, FKM) -SKY RUBBER

2025-12-08

Fluororubber refers to a group of elastomers whose molecular chains contain fluorine-containing side groups. There are 10 types, among which copolymers of vinylidene fluoride and perfluoropropylene, or with the addition of tetrafluoroethylene, are commonly used. In China, this type of rubber is called type 26 fluororubber, while DuPont calls it Viton -type fluororubber.

Performance characteristics :

Fluororubber

Fluororubber has high chemical stability and is the best elastomer in terms of resistance to oil, chemicals, and corrosive media. It can resist corrosion from aqua regia. It is also flame retardant and vacuum resistant, and is the only type of rubber that can be used in a vacuum. However, fluororubber has poor elasticity and poor resistance to low temperatures and polar substances such as water.

Main uses :

It has been widely used in aerospace, aviation, automotive, petroleum and home appliance industries, and is an irreplaceable key material in the cutting-edge defense industry.