Classification of car sealing strips
Vulcanized rubber sealing tape
Generally it is made of EPDM material. Excellent comprehensive performance, outstanding ozone resistance, excellent weather resistance, good high temperature and low temperature resistance, outstanding chemical resistance, resistance to a variety of polar solutes, and low relative density. The disadvantage is that it has a large expansion in general mineral oil and lubricating oil, and it is generally a dark product. The operating temperature range is -60～150℃. With its wide application range and excellent comprehensive performance, it has been recognized by domestic and foreign industry enterprises.
Silicone rubber sealing tape
It has outstanding high and low temperature resistance, ozone resistance and weather resistance; it has excellent hydrophobicity and proper air permeability; it has unparalleled insulation performance; it can reach the sanitary level of food hygiene requirements and can meet the requirements of various colors. The disadvantage is that the mechanical strength is the worst among rubber materials and is not resistant to oil. Operating temperature range -100～300℃. It can be applied to areas with high temperature, cold, strong ultraviolet radiation and middle and high-rise buildings.
Neoprene Sealing Strip (CR)
Compared with other special rubbers, the individual properties are worse, but the overall properties are well balanced. It has excellent weather resistance, ozone resistance, heat aging resistance, oil and solvent resistance, good chemical resistance and excellent flame resistance, and good adhesion. Poor storage stability, hardening will occur during storage, and cold resistance is not good. The relative density is larger. Generally black products. Used in the environment with oil resistance, heat resistance, acid and alkali resistance requirements. The operating temperature range is -30～120℃.
Nitrile rubber seal
The main feature is oil and solvent resistance, but it is not resistant to media such as ketones, esters and chlorinated hydrocarbons. It has good elasticity and mechanical properties. The disadvantage is that it is easy to age and crack in ozone and oxidation, and has poor cold resistance and low temperature resistance.