1.Polypropylene membrane needle punched felt Make the Polypropylene felt obtain higher working temperature, smoother surface. This can make the cakes removal easier, and increase the filtration precise without change of large air permeability. material PP+PTFE weight (g/m2) 500 thickness(mm) 1.9 Air permeability (m3/m2/min) ≥12 Breaking strength (N/5*20cm) war ≥1000 weft ≥1000 Elongation (%) warp ≤35 weft ≤40 tenacity (Mpa/min) 2.55 Constant working temperature (℃) 110 Instant working temperature (℃) 150 Acid resistant excellent Alkali resistant excellent Abrasion resistant excellent Hydrolyze stability excellent finishing treatment Singed, calendering 2.Polyester membrane needle punched felt material PP+ PTFE weight (g/m2) 500 Thickness (mm) 1.90 Air permeability (m3/m2/min) 13 Breaking strength (N/5*20cm) warp ≥1000 weft ≥1100 Elongation (%) warp ≤35 weft ≤40 Constant working temperature (℃) 130 Instant working temperature (℃) 150 Acid resistant excellent Alkali resistant common Abrasion resistant excellent Hydrolyze stability common Finishing treatment Singed, calendering Currency: Unit Price: Quantity: Delivery: