Fluorine rubber main performance and application from the main chain structure, fluorine rubber can be divided into three basic types: fluorocarbon rubber, fluorine silicone rubber, phosphorus fluoride nitrile rubber. Among them, fluorocarbon rubber is given priority to, and among them, vinylidene fluoride and trifluorovinyl chloride copolymerization (1# glue), vinylidene fluoride and hexafluoropropylene copolymerization (2# glue), vinylidene fluoride and hexafluoropropylene and tetrafluoroethylene ternary copolymerization (3# glue).

(1) 1# fluorine rubber has good physical and mechanical properties and chemical stability, can be used in 200℃ for a long time, 250℃ for a short time; Brittle point is -20℃~ -40℃; Excellent medium resistance, excellent stability of organic solvents, inorganic acids, oxidants, especially excellent acid resistance; It has good weather resistance and ozone resistance. After several years of exposure in the atmosphere, its physical and mechanical properties change little, and its effect on microorganisms is relatively stable. 1# fluorine rubber is only produced by Chenguang Hospital in China. Mainly used for the preparation of heat - resistant, oil - resistant, acid - resistant rubber products. Such as seals, hose, rubber pad, tape, tape, book film, oil tank and impregnated products can also be used as outer sheath of wire and equipment anti-corrosion lining, widely used in aviation industry, petroleum industry, automobile industry, chemical industry and other fields.

(2) 2# fluorine rubber 2# fluorine rubber is a large amount of fluorine rubber varieties. Good storage stability, electrical insulation and radiation resistance; Excellent oil and medium resistance; Good vacuum performance, can meet the needs of special occasions; Good heat resistance, usually can be used in 250℃ for a long time, 300℃ for a short time.

Type 26 fluorine rubber is mainly used for the preparation of rubber products with heat resistance, oil resistance and acid resistance. Such as seals, rubber hose, rubber pad and so on. The product can be used in 250℃ for a long time, 300℃ for a short time, its oil resistance is better than other varieties of fluorine rubber, can be used for the occasion of oil resistance parts. Examples are as follows: used as "○" ring, V-ring, oil seal bowl with metal frame, valve gasket, etc. These sealing materials can operate at 200 ~ 250℃ for long term and 300℃ for short term.

In the petroleum industry: F26 rubber seals are used in drilling machinery refining equipment, natural gas desulfurization device, can withstand high temperature, high pressure, oil and strong corrosive medium and other harsh conditions.

In the chemical industry: F26 seals are used in pumps, fittings, equipment containers to seal inorganic acids, organic substances and other chemicals.

In construction material manufacturing: F26 can be used as cement single bin pump sealing rubber ring, the service life of the sealing ring is about 10 times longer than that of natural rubber.

(3) 3# fluorine rubber has outstanding high temperature resistance, oil resistance, especially resistance to double ester oil, chemical resistance and good physical and mechanical properties, satisfactory dielectric properties, incombustible, weather resistance and excellent vacuum performance, radiation resistance; Usually can be used in 275℃ for a long time, in 320℃ for a short time; Oil resistance, acid resistance is better than 1# adhesive; Weather resistance, ozone resistance, radiation resistance, air permeability and electrical properties and fire resistance are similar to 2# adhesive. Widely used in aerospace, automobile, machinery, petrochemical and other fields. For example, hydrostatic sealing materials used in hydraulic system and lubrication system of aircraft; Used as oil field sealing material, oil field cable pipeline and drilling equipment; Chemical industry used as equipment, flexible pipe connection, pump lining or corrosion resistant sealing material, made of pipes, to transport or organic solvents or other corrosive media, etc.