Firm Felt Details and Specifications

The felt is generally on supplied in off white colours and brown grey.

A97/4W for White felt. A97/4G for Grey felt. 

General Characteristics

  1. Firm to the touch with a smooth surface. 
  2. Less compressible than medium or soft felt. 
  3. Average drape characteristics and only at thin gauges. 
  4. High liquid absorption capacity 
  5. A high performance felt. 
  6. Operational within a temperature range of -20 to +100 Celsius 
  7. Self-extinguishing with a flashpoint in excess of 650 Celsius 

Fabricating methods

Firm felt can be die-cut, slit to custom widths, laminated with adhesives, impregnated with lubricating waxes, and easily cut with knives and shears into simple shapes. Shaping and grinding of profiles can also be achieved with more accuracy than in medium grade felts. 

Typical Applications

  1. Dust Seals. 
  2. Oil & Grease retainers. 
  3. Fluid storage and delivery. 
  4. Anti-squeak strips. 
  5. Cushioning. 
  6. Packaging. 
  7. Protection and insulation. 
  8. Excellent bearing grade. 
  9. Good compression recovery. 
  10. Steel strip brake pads. 
  11. Excellent bearing seal grade for friction applications. 

Dimensions

Our Firm felts are manufactured at 1830mm and 1520mm widths (72” & 60”) and are available in various roll lengths governed by the material thickness.

Additional information

Firm felts are performance textiles and are designed to be used in demanding situations. 

Their density means they can withstand high friction areas without degradation. 

There is very little stretch in firm felts and they are resilient to delamination of the core. 

In a similar way to medium felts, they will operate well at absorbing and transferring liquids particularly onto constantly moving surfaces. 

The thickness range in both white and grey formats is limited when compared to medium grades and is limited by application requirements known to us. 

Specification Charts

Our reference 

British Standards 

German DIN Standards 

American SAE Standards 

       

W36 

A97/4W 

F-1 

F1 

G36 

A97/4G 

F-2 

F51 

 

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