Silicone rubber fiberglass (fiber inside and rubber outside) sleeving, woven as sleeving by non-alkali fiberglass and coated with silicone in high temperature. It has better dielectricity, automatic quench and softness than silicone rubber fiberglass sleeving, widely used in the insulation protection of internal line cluster in H&N machinery, household electrical appliances, electroheat device and special illuminations.