Signature Silicone-impregnated fiberglass fabric is highly flexible and provides an excellent protection fabric used in insulating blankets and other heat resistant parts. Silicone coating has added water and oil resistance and low smoke and flame retardant. Although the base fiberglass fabric has a rating of 1000°F/550°C, the silicone coating is rated for a continuous 550°F/287°C. The Silicone Coated Fiberglass Fabric provides good flexibility, puncture, and tear resistance. This fabric's dry surface does not stick to the sewing table, making it easier to sew, drape, and handle.