Fluorine rubber (FKM) is a synthetic polymer elastomer that contains fluorine atoms on the carbon atoms of the main or side chains. The introduction of fluorine atoms endows fluororubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance, and atmospheric aging resistance, making it irreplaceable in sectors such as aerospace, science and technology, automobiles, chemical industry, light industry, metallurgy, machinery, petroleum extraction, shipbuilding, environmental protection, etc. Fluorine rubber has the characteristics of high temperature resistance, oil resistance, and resistance to various chemical agents, making it an indispensable material for cutting-edge science and technology such as modern aviation, missiles, rockets, and aerospace. With the continuous improvement of reliability, safety and other requirements in the automotive industry, the usage of fluororubber in automobiles is also rapidly increasing.
Fluorine rubber, due to its characteristics of high temperature resistance, oil resistance, high vacuum resistance, acid and alkali resistance, and resistance to various chemicals, has been applied in cutting-edge technologies such as modern aviation, missiles, rockets, space navigation, ships, atomic energy, and industrial fields such as automobiles, shipbuilding, chemistry, petroleum, telecommunications, instruments, machinery, etc. FKM is mainly used in automobiles for fuel filler pipes, fuel hoses, fuel cap seals, fuel pump seals, fuel injector O-rings, oxidation sensor bushings, crankshaft oil seals, valve stem oil seals, cylinder gaskets, intake manifold seals, turbocharger pipes, power battery cover plates, etc.
Temperature range: -45 ℃~204 ℃
Advantages:
&Middot; Excellent chemical stability, resistant to most oils and solvents, especially various acids, aliphatic hydrocarbons, aromatic hydrocarbons, and animal and vegetable oils
&Middot; Excellent high-temperature resistance
&Middot; Good aging resistance
&Middot; Excellent vacuum performance
&Middot; Excellent mechanical performance
&Middot; Good electrical performance
&Middot; Good permeability
Disadvantages:
&Middot; Not recommended for ketones, low molecular weight esters, and nitro containing compounds
&Middot; Poor low-temperature performance
&Middot; Poor radiation resistance
Applicable medium:
&Middot; Mineral oil, ASTM No.1 oil IRM902 oil and 903 oil
&Middot; Non combustible HFD hydraulic oil
&Middot; Silicone oil and silicone ester
&Middot; Mineral and vegetable oils and fats
&Middot; Fatty hydrocarbons (butane, propane, natural gas)
&Middot; Aromatic hydrocarbons (toluene, xylene)
&Middot; Chlorinated hydrocarbons (trichloroethane, carbon tetrachloride)
&Middot; Gasoline (including high alcohol gasoline)
&Middot; high vacuum
Unsuitable media:
&Middot; Ethylene glycol based brake oil
&Middot; Ammonia, amine, alkali
&Middot; Superheated steam
&Middot; Low molecular weight organic acids (formic acid and acetic acid)