... , 2.5KV, 4KV, 7KV Colour: white, red, black, yellow Silicone fiberglass sleeving is twisted with non-alkli fiberglass yarn and coated with ... special silicone resin under high temperature, with good dielectric, self-extinguish ... °C ~ 250 °C;Colour: white, red, black, yellow, etc. Fiberglass Insulation Sleeving - Silicone Coated