Polypropylene Needle Felt

Features:
1) Material: polypropylene
2) Weight: 650gsm
3) Thickness: 2.0mm
4) Tensile strength (n/5/10cm): a) Warp: 1,200 b) Weft: 1,300
5) Tensile elongation: a) Warp: <50% b) Weft: <55%
6) Permeability (10-3m3/m2S): 100 - 350
7) Working temperature (℃): a) Continuance: 90 b) Instant: 110
8) Surface treatment: calendaring