Silicone rubber, the raw material of silica gel, is a new type of high elastic material. 

It has excellent high temperature resistance (250-300 ℃) and low temperature (- 40-60 ℃), good physiological stability, and can withstand repeated harsh and disinfection conditions. It has excellent resilience and long-term deformation, 

small deformation (less than 50% at 200 ℃ for 48 hours), and breakdown voltage is (20-25kv / mm), Ozone resistant, UV resistant. Special silicone rubber has oil resistance, for example, fluorosilicone rubber has excellent oil resistance. 

Solvent resistance, it is for aliphatic. Aromatic and chlorinated hydrocarbon solvents. Various petroleum based fuel oils. Hydraulic oil and some synthetic oil, such as ester lubricating oil. The silicone rubber has excellent high temperature radiation resistance and elasticity when r-ray reaches 1 × 109.