Silicone rubber has a high electrical resistivity and its resistance value can still remain stable over a wide temperature and frequency range. At the same time, silicone has good resistance to high-voltage corona discharge and arc discharge, such as high-voltage insulators, TV high-voltage caps, electrical components, etc. The minimum operating temperature critical point for ordinary rubber is -20 ° C to -30 ° C, while silicone rubber still has good elasticity between -60 ° C to -70 ° C. Some special formulations of silicone rubber can also withstand extremely low temperatures, such as low-temperature sealing rings. When conductive fillers (such as carbon black) are added, silicone rubber has good conductivity, such as conductive contact points on keyboards, electric heating components, anti-static components, shielding for high-voltage cables, medical therapy conductive films, etc. Ordinary rubber rapidly degrades under the action of ozone generated by corona discharge, while silicone rubber is not affected by ozone, and its physical properties only show slight changes after prolonged exposure to ultraviolet radiation and other climatic conditions,For outdoor use Sealing material class。The radiation resistance of silicone rubber containing benzene is greatly improved, such as electrically insulated cables and connectors for nuclear power plants.