Is PTFE the same as fluorosilicone?

Fluororubber belongs to synthetic rubber, while PTFE belongs to plastics; they are not the same. In terms of application, PTFE has better temperature resistance and corrosion resistance than fluororubber.

The Chinese name for PTFE is polytetrafluoroethylene. PTFE emulsion is a polymer chemical material containing polytetrafluoroethylene, and it is widely used in packaging, the electronics and electrical industry, the chemical and energy sectors, as well as in corrosion-resistant materials. Teflon is a fluoropolymer coating based on polytetrafluoroethylene; its English name is Teflon. Due to differences in pronunciation, it is also commonly referred to as Tiefulong, Tiefulong, Teifulong, Tefflon, and so on (all of which are transliterations of Teflon). Teflon coating is a unique high-performance coating that combines heat resistance, chemical inertness, excellent insulation stability, and low friction, offering comprehensive advantages that no other coating can match. Its versatility allows it to be used on products of almost any shape and size. Fluororubber refers to a synthetic polymer in which carbon atoms in the main chain or side chains contain fluorine atoms. The earliest fluororubbers were poly-2-fluoro-1,3-butadiene and its copolymers with styrene, propylene, etc., developed in 1948 by the American company DuPont. However, their performance was not superior to that of neoprene or butyl rubber, and they were expensive as well, rendering them of no practical industrial value. In the late 1950s, the American company Thiokol developed a binary nitrofluorocarbon rubber with good low-temperature performance and resistance to strong oxidizers such as N2O4, marking the beginning of the practical industrial use of fluororubbers. Since then, with technological advancements, various new types of fluororubbers have been continuously developed.

The reply on the 3rd floor is already very detailed. In terms of price, fluororubber is more expensive than PTFE