polypropylene needle felt
Product Description
Detailed Product Description
Features:
1) Material: polypropylene
2) Weight: 500gsm
3) Thickness: 2.2mm
4) Tensile strength (n/5 x 20cm): a) Warp: 1,000 b) Weft: 1,100
5) Tensile elongation: a) Warp: <35% b) Weft: <55%
6) Permeability (10-3m3/m2.S): 150 - 200
7) Working temperature (oC): a) Continuance: 120 b) Instant: 150
8) Surface treatment: singeing, calendaring
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