Silicone Rubber Coated Fiberglass Cloth 1.Temperature resistance: -40 C up to plus 250 C ... constant 3-3.2 breaking down voltage: 20-50KV/MM; 6, Non-toxic, environmentally friendly; Applications : 1, Safety curtains, heater covings ... : red, yellow, White, black, gray or customized Silicone Rubber Coated Fiberglass Cloth