The high temperature resistance of foamed sealing strip is better than that of silicone rubber, and it has excellent weather resistance, ozone resistance and chemical resistance, and cold resistance is poor. About most oils and solvents have resistance to talent, especially acid, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils. Suitable for sealing requirements of diesel engines, fuel systems and chemical plants. Not recommended for ketones, low molecular weight esters and nitrate-containing mixtures. EPDM EPDM rubber sealing strip: It has good weather resistance, ozone resistance, water resistance and chemical resistance. Can be used for alcohols and ketones, and can also be used for sealing in high temperature water vapor environment. Suitable for sanitary equipment, car radiator and car brake system. It is suitable for a variety of environments exposed to the atmosphere, sunlight, ozone and various flame-resistant and chemically-resistant sealing links. The general application temperature planning is butyl rubber sealing strip: particularly good air tightness, heat resistance, sunlight resistance, ozone resistance, good insulation function; good resistance to polar solvents such as alcohol, ketone, ester, May be exposed to animal or vegetable oils or oxidizable materials. Suitable for chemical resistant or vacuum equipment.