needle punched felt|needle felt|Shanghai Eversprign Filtration polyester needle felt 1.good anti-abriasion 2.better price efficient rate 3.high strength 4.anti-acid The temperature resistance of PET series between 130 and 150,PE felt is most widely applied ,in addition to its special properties as other needle punched felt,it also has good anti-abriasion and better price efficient rate. Features: Product name:polyester needle felt(range:300gsm-4000gsm) Material: polyester staple fiber Scrim:polyester staple woven cloth Weight: 500gsm Thickness: 1.6mm Tensile strength (n/5 x 10cm): a) Warp: 1,000 b) Weft: 1,200 Tensile elongation: a) Warp: <30% b) Weft: <35% Permeability (10-3m3/m2.S): 200 - 400 Working temperature (sup>oC): a) Continuance: 120 b) Instant: 150 Surface treatment: singeing, calendering Packing:polybag