Silicone rubber has many excellent properties:
  Permeability: Silicone rubber film has better permeability than ordinary rubber and plastic waxing film. Another feature is that it has a strong selectivity for different air permeability. Gas exchange membranes for medical artificial organs.
  Cold resistance: Ordinary rubber delay is -20 degrees to -30 degrees, that is, silicone rubber still has good elasticity when it is -60 degrees to -70 degrees, and some special formulations of silicone rubber can also withstand extremely low temperatures. Low temperature sealing ring.
  Weather resistance: Ordinary rubber rapidly degrades under the action of ozone generated by corona discharge, while silicone rubber is not affected by ozone. In addition, under ultraviolet light and other climatic conditions for a long time, its physical properties only change slightly. Sealing materials for outdoor use.
  Heat resistance: silicone rubber has much better heat resistance than ordinary rubber, and can be used almost forever at 150 degrees without performance changes; It can be used continuously for 10,000 hours at 200 degrees; It can also be used for a period of time at 350 degrees. Widely used in applications requiring heat resistance: hot water 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 range of temperatures and frequencies. At the same time, silicone rubber has good resistance to high voltage corona discharge and arc discharge. High voltage insulator TV High voltage cap electrical parts other.
  Electrical conductivity: When a conductive filler (such as carbon black) is added, the silicone rubber has a keyboard conductive contact point.
  Thermal conductivity: When adding some thermal conductive fillers, silicone rubber has thermal conductivity heat sink thermal sealing pad photocopier, fax machine thermal roller.
  Radiation: The radiation resistance of silicone rubber containing phenyl greatly improves the electrical insulation cables used in nuclear power plant connectors.
  Flame retardant: silicone rubber itself is flammable, but when adding a small amount of flame retardant agent, it has flame retardant and self-extinguishing; And because silicone rubber does not contain organic halides, it does not smoke or emit toxic gas when burning, and various occasions are strictly fireproof.