1.Natural rubber NR has good corrosion resistance to weak acid and alkali, salt and chloride solutions, poor corrosion resistance to oil and solvent, and is not recommended for ozone media.Recommended operating temperature - 57 ℃ ~ 93 ℃.
2.CR neoprene is a synthetic rubber adapted to the corrosion of moderately corrosive acids, bases and salts.Good corrosion resistance to commercial oils and fuels.However, the corrosion resistance of strong oxidizing acids, aromatic hydrocarbons and chlorinated hydrocarbons is poor.Recommended operating temperature - 51 ℃ ~ 121 ℃.
3.NBR is a kind of synthetic rubber, which is suitable for the corrosion resistance of oil, solvent, aromatic hydrocarbon, alkali hydrocarbon, petroleum and natural gas in a wide range of temperature.It has good corrosion resistance to hydroxide, salt and nearly neutral acid.But in strong oxidizing medium, chlorinated hydrocarbons, ketones and lipid its corrosion resistance is poor, the recommended operating temperature 51 ℃ ~ 121 ℃.
4.Fluorine rubber fluorine rubber compound is made of two - and three - element fluorine raw rubber filler and vulcanizing agent.In addition to excellent thermal, medium and physical and mechanical properties, it has low compression permanent deformation, good elasticity and long service life.Fluorine rubber has the outstanding heat resistance (200 ~ 250 ℃), oil resistance, can be used in the manufacture of cylinder liner sealing ring, plastic bowls and rotating lip seals, can significantly improve the use of time.Recommended operating temperature - 40 ℃ ~ 232 ℃.
5.Chlorosulfonated polyethylene synthetic rubber has excellent corrosion resistance to acid, alkali and salt solutions, and is impervious to weather, light, ozone, commercial fuels (such as diesel and kerosene).But not suitable for aromatic hydrocarbon, chlorinated hydrocarbon, chromic acid and nitric acid.Recommended operating temperature - 45 ℃ ~ 135 ℃.