With the application of unleaded gasoline and electrospraying devices in automobiles, the structure of the fuel hose has undergone great changes in the material, and the inner rubber layer has been developed to replace the nitrile rubber with fluororubber, chlorohydrin rubber or acrylate rubber. In order to reduce fuel permeability and further improve heat resistance, the inner layer rubber is mostly composed of a composite structure, that is, composed of fluororubber (FKM) and chlorohydrin rubber or acrylate rubber, and is extruded. (Fuster rubber is quality and more customers choice! formed rubber hose for hot sale)

Since the fluororubber is expensive, the fluororubber layer is relatively thin (0.2-0.7 mm). The reinforcing layer is woven or wound by glass fiber, polyester fiber or nylon fiber. The outer rubber layer is made of chlorohydrin rubber. Acrylic rubber or chlorosulfonated polyethylene rubber replaces neoprene. Therefore, polyamide is also used in the inner rubber layer, such as the fuel hose produced by the German company, and the inner layer of the nitrile rubber is coated with the nylon 6 film, so that the fuel permeability of the hose can reach 0.004 ml/cm 2 -24 h or less.

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