1. Glass-fibre-needle-felt
Features:
1) Material: glass fiber
2) Weight: 800gsm
3) Thickness: 2.4mm
4) Tensile strength (N/5 x 20cm):
a) Warp: ≥1,050
b) Weft: ≥1,800
5) Tensile elongation: a) Warp: <10%
b) Weft: <10%
6) Permeability (10-3m3/m2S): 260 - 300
7) Working temperature (oC): a) Continuance: 260 b) Instant: 300
8) Surface treatment: PTFE dip, forming process, calendering