silicone rubber is a kind of polymer as well as a good material has good electrical insulation properties.  It is resistant to oxidation, has low surface energy, and resists degradation from ultraviolet (UV) radiation. It has dielectric loss, withstand voltage, arc resistant, corona resistance, volume resistivity and surface resistivity. What's more, silicone rubber is one of material best in insulating materials.These properties make silicone rubber a good choice for electrical insulators. And because of that, silicone rubber has gradually replaced other composite insulation materials in high-voltage lines and substations.Silicone rubber also be used on automobile industry. Automotive spark plug wires, for example, they are insulated by multiple layers of silicone to prevent sparks.The properties of silicone rubber come from the structure of the polymer.What are silicone rubber's characteristics?Excellent high temperature resistance, low temperature performance (low temperature -70 ° C, high temperature 280 ° C; good insulation performance. High strength; both soft and tough, can be cut and processed.Good chemical resistance; oil resistant, waterproof [scrubable]Heat aging and weathering resistance, as well as ozone, oxygenThe dielectric constant is 3 to 3.2, and the breakdown voltage is 20 to 50 kV/mmWeishun is a manufacturer produce silicone products. If you are in need of silicone products having good electrical insulation properties, please consider Wei Shun.