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FMS Fiberglass Compound Needle Felts

HL Filter offers a wide range of fiberglass compound needle felts. Most Popular fiberglass blends: Fiberglass + Aramid, Fiberglass + PI, Fiberglass + PPS

Bulk Roll Goods: weight, thickness, density, roll width, and roll length are customized at your request.

High temperature and corrosion resistance

Good high temperature resistance filter fabrics

Increase the filter surface

Increase the fiber cohesion

Filter efficiency will superior than woven filter fabrics

Fiber Materials  Fiberglass + Aramid, Fiberglass + PI, Fiberglass + PPS
Standard Finishes
(Special surface treatments available)
Heat Set, Singed, Glazed, PTFE membrane
oz/yd² (g/m2)
23.60-26.55 (800-900)

   Inch (mm)
0.087-0.11 (2.2-2.8)
Air Permeability
 CFM@ ½" W.G125PA
 (m³/m².min@200PA )
20-50 (10-25)
  Tensile Strength
 lb/in (N/5CM)
Warp MD  274 (2400)
Weft CD 228 (2000)
Tensile Elongation (%) Warp MD  ≤15
Weft CD ≤10
Thermal Shrinkage (%) at max continuous temp. Warp MD  ≤1
Weft CD ≤1.5
Max. Operating Temperature  oF (oC) Continuous 500 (260)
Surge 536 (280)
The data are based on laboratory conditions. 
Testing based on specific operating conditions of each installation is recommended.

Metallurgical plant

Chemical plant

Coal fired boiler


Cement plant

Custom OEM Applications

Customized per order

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