①NBR

Nitrile rubber has excellent resistance to fuel oil and aromatic solvents, but is not resistant to ketone, ester and hydrogen chloride and other media, so oil resistant sealing products and the use of nitrile rubber.

②EPDM

The main chain of EPDM rubber is a completely saturated straight chain structure without double bonds, and there is diene Jing on the side chain, so that sulfur can be vulcanized. Epd rubber has excellent aging resistance, ozone resistance, weather resistance, heat resistance (can be used in 120℃ environment for a long time), chemical resistance (such as alcohol, acid, strong base, oxidant), but not resistant to aliphatic and aromatic solvent erosion. Epdm rubber has the lowest density in rubber with high filling characteristics, but lacks self-viscosity and mutual viscosity. In addition, EPDM rubber has outstanding steam resistance, and can be made of steam resistant diaphragm and other sealing products. Epdm rubber has been widely used in washing machines, TV accessories and door and window sealing products, or a variety of complex profile rubber strip production.

③FKM /FPM

Fluorine rubber has outstanding heat resistance (200 ~ 250℃), oil resistance, can be used in the manufacture of cylinder liner seals, rubber bowls and rotary lip seals, can significantly improve the service time.

④SIL / VMQ

Silicone rubber has outstanding high and low temperature resistance, ozone resistance and weather-resistant aging properties, in the working temperature range of -70 ~ 260℃ can maintain its unique use of elasticity and ozone resistance, weather resistance and other advantages, suitable for the production of thermal mechanism required gaskets, such as strong light source lampshade sealing ring, valve pad and so on. Because silicone rubber is not oil resistant, low mechanical strength and expensive, it is not suitable to make oil resistant sealing products