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Name | PTFE membrane needle felt | ||
Compositions | membrane | ||
Weight (g/ m2) | 500 | ||
Thickness (mm) | 1.8 | ||
Air permeability (L/m2/s) | 30-60 | ||
Tensile strength (N/5 20cm) | wrap | 1000 | |
weft | 1100 | ||
Tensile Elongation (%) | wrap | <37 | |
weft | <35 | ||
Broken strength (Mpa/min) | 2.35 | ||
Continuous working temperature (ºC) | ≤130 | ||
Short time Working temperature (ºC) | 160 | ||
Anti-acid | Fair | ||
Anti-alkali | Fair | ||
Anti-abrasion | Excellent | ||
The stability of water solution | Fair | ||
Finishing treatment | Heating setting, PTFE membrane. | ||

Working Environment | Product Name | Weight (g/m2) | Thickness (mm) | Air permeability (m3/m2.min) | Temperature Resistance (°C) | ||
Continues | Instant | ||||||
Room Temperature | Polyester Needle Felt | 450-700 | 1.6-2.2 | 8-18 | 130 | 150 | |
Polypropylene Needle Felt | 400-600 | 1.6-2.4 | 8-20 | 80 | 100 | ||
Acylic Needle Punched Felt | 500-600 | 1.8-2.2 | 8-20 | 130 | 150 | ||
PTFE Membrane Needle Punched Felt | 450-600 | 1.6-2.2 | 2-4 | 130 | 150 | ||
High-temperature Chemical Fiber | PPS Needle Punched Felt | 400-650 | 1.4-2.2 | 8-20 | 160 | 190 | |
P84 Needle Punched Felt | 500-600 | 1.8-2.4 | 8-20 | 250 | 280 | ||
PTFE Needle Punched Felt | 650-800 | 0.8-1.2 | 8-20 | 240 | 260 | ||
Aramid (Nomix, Conex) Needle Punched Felt | 450-550 | 1.7-2.4 | 8-20 | 204 | 240 | ||
High-temperature Fiberglass Compound | Fiberglass, PPS Compound Felt | 900±50 | 2.2-2.8 | 22±5 | 190 | 232 | |
Fiberglass, Aramid Compound Felt | 900±50 | 2.2-2.8 | 22±5 | 204 | 240 | ||
Fiberglass, P84 Compound Felt | 900±50 | 2.2-2.8 | 22±5 | 260 | 280 | ||
Fiberglass, PTFE Compound Felt | 900±50 | 2.2-2.8 | 22±5 | 280 | 300 | ||








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