► Fluorosilicone rubber (FVMQ), also known as -trifluoropropylmethyl polysiloxane, generally introduces 0.2% to 0.4% vinyl siloxane copolymerization modification into the molecular chain, and is colorless, transparent, highly viscous and plastic. Chain polymer compound, the main chain is composed of silicon and oxygen atoms, the side groups connected to silicon are methyl, vinyl and trifluoropropyl, and the molecular weight is between 500,000 and 800,000. With various additives, it can be mixed into a homogeneous rubber material, and can be vulcanized into various elastic rubber products under the action of organic peroxides. In addition to the characteristics of general silicone rubber, it also has excellent resistance to aviation fuel oil, hydraulic pressure Oil, engine oil, chemical reagents and solvents and other properties. On the basis of maintaining the heat resistance, cold resistance, high voltage resistance, weather aging resistance and other excellent performances of organic silicon materials, fluorosilicone O-rings have the excellent resistance of organic fluorine materials due to the introduction of fluorine-containing groups. Hydrogen solvent, oil resistance, acid and alkali resistance and lower surface energy properties.