wholesalers china manufacturer polyester reinforce for asphalt sheet roofing 100% polyester staple nonwoven fabric) Polyester mat (Polyester felt) as bitumen waterproofing material is widely used in building area. There have National standard and nonstandard. The product is refined form high strength polyester fibers with many excellent characteristics, such as strong tensile strength, good extension, excellent hot stability, antiaging, strong puncture resistance, corrosion resistance etc.