Perfluoroelastomers, also known as FFKM or perfluoroether rubber, stand as one of the finest products in the rubber industry. They are formed by the polymerization of three or more fluoroelastomer monomers, with hydrogen atoms being entirely replaced by fluorine atoms. This material exhibits high-temperature resistance and can thrive in harsh chemical and solvent environments.

The chemical resistance of perfluoroelastomers is akin to that of PTFE, while their mechanical properties resemble those of tetrafluoroethylene rubber. It is a high-end, high-performance rubber that is virtually impervious to various fluids, including fats, aromatics, esters, ethers, ketones, oils, lubricants, and most acids. However, certain halides and strong oxidizing agents may cause material expansion. Perfluoroelastomers boast a wide operating temperature range, with continuous use possible at temperatures ranging from 260°C to 290°C and intermittent use reaching up to 316°C. They exhibit exceptional resistance to ozone, weathering, flames, and radiation, making them suitable for high-vacuum applications.

Perfluoroelastomers combine the chemical resistance and temperature resilience of PTFE with the elasticity of fluoroelastomers, excelling in maintaining seal integrity, reducing maintenance frequency, and enhancing safety. They find extensive applications in industries such as semiconductor, petrochemical, automotive, aerospace, biotechnology, electronics, solvent equipment, nuclear, and other high-temperature mechanical fields.