High Temp Sleeving. 30mm ID x 1m Length. Produced using braided E-glass fibre and coated with silicone rubber, the B-G Black Silicone Fire Wrap is a high-performance heat resistant sleeve for protecting fuel lines, oil lines, wiring looms and more, capable of withstanding 260°C (500°F) of continuous radiant heat and 482°C (900°F) of direct heat.