Acrylic Coated Fiberglass Cloth is a woven fiberglass fabric with acrylic treatment.It supports temperature up to 5500C,self-extinguishes in 2 seconds when getting away from fire. Acrylic treatment reduces airborne fibers, enhances abrasion resistance and shelf life while eliminating the potential for toxic smoke out gassing. After treated, the machanical performance improves much as well,become easy to sew, cut, and pouch holes. It is human being & animal friendly, asbestos-free completely