4mm-100mm Red/Black Silicone Rubber High Temp Voltage Cable Sleeving Sheathing The surface of the fireproof casing is coated with organic silica gel, which is not easily decomposed by ultraviolet light and ozone. Fire-proof casing has good electrical insulation properties. Product Specifications : 4mm to 100mm. byJuly 3, 2026Last Updated on: July 5, 2026