The flexible and self-extinguishable silicone glass fiber sleeving is braided with E fiberglass; it is treated at a high temperature and coated with a special kind of silicone resin. This flexible and self-extinguishable silicone glassfiber sleeving has good qualities of dielectric, self-extinguishment, excellent softness. It is widely used as wiring insulator for H grade electrical motor, domestic electrical appliances (lamp, icebox, air-conditions, TV etc. The collected strands of wire for heating electric equipments and electronic apparatus.