Lewco Style 1750SAR-2 is an asbestos free woven fiberglass fabric impregnated with a special hemical, water and oil resistant silicone rubber.  LEWCO Style 1750SAR-2 is a flexible, light to medium fabric for welding curtains and fire blanket applications. The silicone coating is designed to prevent dust and fly. This material has been tested and meets NFPA 701-1999 Fire Tests for Flame-Resistant Textiles and Films Method 1.