Electrical Insulating Silicone Rubber Solid Silicone Rubber to Make Various Composite Insulators Surge Arresters High Voltages Kv 10 24 35 66 110 220 330 500. Long Outdoor Lifespan: Resists ozone and UV radiation, lasting over 20 years outdoors without cracking. High Tracking & Erosion Resistance: Ensures safety and reliability in high-voltage electrical applications. Excellent Hydrophobicity: Provides superior water repellency for enhanced insulation performance. Custom Color Options: Available in gray, red, or custom colors to meet specific requirements. Flexible Customization: Offers full customization, minor customization, and design-based solutions. High Production Capacity: Monthly capacity exceeds 1,000 tons to handle large and urgent orders.