High and low temperature resistance
Silicone rubber has excellent mechanical properties at high temperature (above 200 ℃), and still has certain toughness and elasticity. The glass transition temperature (TG) can be as low as - 70 ℃. In general, the working temperature of silicone rubber is - 100 ℃ to 350 ℃. It can withstand thousands of degrees of instantaneous high temperature, so it is often used to make heat-resistant coating, such as aviation field.

Electrical insulation
Silicone rubber has good insulation. After combustion, the silicon dioxide is still the insulating material. In addition, silicone rubber is not easy to be burnt in arc discharge, because its structure has less carbon atoms, and its reinforcing filler is white carbon black, which is suitable for high voltage applications.

Physiological inertia
The surface of silicone rubber is hydrophobic, so the physical properties of silicone rubber in humid environment decrease little. Poor adhesion, can play a role in isolation. It is non-toxic, tasteless, harmless to human health, and can only react slightly with the body, which also creates its excellent physiological inertia, at the same time, it is also very superior in physiological aging performance.