Features of Fiberglass Nonwoven Needle Felt:
1.Excellent Anti-Acid And Anti-Alkali
2.High Temperature Resistance:240-280℃/464-536℉
3.Long Service Life: >4500 hours
4.Abrasion resistance, high tensile strength
5.Single fiber, high porosity, gas filtration resistance
6.Low resistance of filtration
7.Can be used in a variety of complex situation and harsh environmental conditions
8.Can be customized.
Physical Properties of Fiberglass Nonwoven Needle Felt:
| Weight（gsm） | 850 | |
| Thickness(mm) | 2.5 | |
| Width(m) | ≤2.2 | |
| Finish treatment | Singeing, Calendering, Heat setting | |
| Air permeability(L/m2.s) | 200-350 | |
| Tensile strength(N/5cm) | warp | ≥900 |
| weft | ≥1050 | |
| Tensile elongation(%) | warp | ≤35 |
| weft | ≤60 | |
| Heat shrinkage(%) | warp | ≤1.5 |
| weft | ≤1.0 | |
| Temperature(°C/°F) | Continue | 240/464 |
| Instant | 280/536 | |
| Anti-acid | Excellent | |
| Anti-alkali | Excellent | |
| Anti-abrasion | Excellent | |
| hydrolysis stability | Good | |
Option 2
We also supply a new material which can replace the PPS needle felt.It has the charactise of the PPS needle felt,but the continue temparature can up ro 250℃.The following are the specification about the new products.
| Weight（gsm） | 810 | |
| Thickness(mm) | 0.75 | |
| Air permeability(cm³/cm²/s) | 2-4 | |
| Tensile strength(N/25mm) | warp | 2400 |
| weft | 2800 | |
| Temperature(°C/°F) | Continue | 260/500 |
| Instant | 300/572 | |
| Anti-acid | Excellent | |
| Anti-alkali | Excellent | |
