Silicone rubber has many excellent properties: Breathability: Silicone rubber film has better air permeability than ordinary rubber and plastic wax film. Another feature is its strong selectivity for different air permeabilities. Gas exchange membrane medical artificial organs.

Cold resistance: The temperature of ordinary rubber is -20 degrees ~ -30 degrees, that is, silicone rubber still has good elasticity at -60 degrees ~ -70 degrees. Some specially formulated silicone rubber can also withstand extremely low temperatures. Low temperature seal.
Weather resistance: Ordinary rubber degrades rapidly under the action of ozone generated by corona discharge, while silicone rubber is not affected by ozone. And its physical properties will only change slightly when exposed to ultraviolet rays and other climatic conditions for a long time. Sealing material for outdoor use.
Heat resistance: Silicone rubber has much better heat resistance than ordinary rubber. It can be used almost forever at 150 degrees without performance changes; it can be used continuously at 200 degrees for 10,000 hours; it can also be used at 350 degrees. a period of time. Widely used in situations requiring heat resistance: thermos bottle sealing ring, pressure cooker ring heat-resistant handle.
Electrical properties: Silicone rubber has a high resistivity and its resistance remains stable over a wide temperature and frequency range. At the same time, silicone rubber has good resistance to high-voltage corona discharge and arc discharge. High-voltage insulators, TV high-voltage caps, electrical components and others.
Conductivity: When a conductive filler (such as carbon black) is added, silicone rubber has conductive contact points for the keyboard.
Thermal conductivity: When certain thermal conductive fillers are added, silicone rubber becomes thermally conductive. Heat sinks, thermal seals, thermal rollers for copiers and fax machines.
Radiation: The radiation resistance of silicone rubber containing phenyl groups is greatly improved, electrically insulated cables, connectors for nuclear power plants, etc.
Flame retardancy: Silicone rubber itself is flammable, but when a small amount of flame retardant is added, it becomes flame retardant and self-extinguishing; and because silicone rubber does not contain organic halides, it does not emit smoke or release toxic gases when burned. Strict fire protection situations.