This kind of filter bag is made of Nomex for high temperature repellent. Material: Acrylic, PPS, Nomex, Weight: 300g/sqm, 400g/sqm, ... /sqm, 600g/sqm, 1000g/sqm Thickness: 1.00mm to 20mm Air perm: 10 to 2000 L/M2/S Warp tensile strenghth: >1000n ... elongation: <25% Weft elongation: <45% Finishing: Heatset, singed, foamed, calendered High temperature resistant filter bags