... Nomex/PPS/GLASS FIBER PP/PET/ACRYLIC/PA ECT. Standard sample: Material: 100% acrylic fiber/ acrylic scrimWeight: 500g/sq.mThickness:1 ... C):<1%.Surface treatment:singed & glazed, heat set.Acrylic needle felt filter felt mainly used in the circumstance with ... metallurgy, power plant, petroleum refining, pharmaceutical, dye industry, food processing, etc, for dust/fume removal and material recovery.Note: 1 ...