PTFE Membrane Needle Punched Felt Application: Cement Plants; Metallurgy industry; Chemical industry; Dyestuff industry; Engineering industry; Pharmacy; Foodstuff industry, etc Materials (Fiber): Polyester, PTFE Membrane Weight (g/sqm): 500 Thickness (mm): 1.8 Tensile Strength (n/5X10cm): Warp 1200, weft: 1350 Tensile Elongation (%): Warp: 17, weft: 20 Air Permeability (L/sqm x S): 30-40 Temperature: Working temperature: 130 Short working temperature: 160 Surface Treatment: Heat setting, PTFE Membrane