SUNPASS Silicone-coated fiberglass fabric is highly flexible and provides an excellent protective fabric for insulation blankets and other heat-resistant components. Silicone coating adds waterproof, oil-proof, low-smoke, flame-retardant and other functions. While the base fiberglass fabric is rated for 1000°F/550°C, the silicone coating has a continuous temperature rating of 550°F/287°C. Silicone coated fiberglass fabric has good flexibility, puncture and tear resistance. The dry surface of this fabric won't stick to your sewing table, making it easier to sew, drape and handle.