Non-woven abrasives consist of a web of nylon fibers impregnated with abrasive grains bonded with synthetic resins.

To understand the cutting action of non-wovens, you need to know that the force applied to the non-woven product is not transferred directly to the workpiece. Some of the force is absorbed in the fibers.

Non-woven products are less aggressive than coated products and tend to give a finer finish.

The web of fibers and grain keep the non-woven abrasive’s surface constantly in contact with the entire surface, unlike a coated product which would skip over the valleys and remove too much metal from the peaks. Non-woven abrasives uniformly finish contoured surfaces without compromising critical tolerances obtained in earlier machine or molding operations.

This feature is especially important during a finishing process. The conventional method for removing deep scratches is to use a progression of coated abrasives grit sizes each giving a progressively finer finish while removing the previous deeper scratch. The conforming nature of non-woven allows deeper scratches to be removed while providing a fine finish. This reduces the number of steps in the process which lowers labor and production costs.

The grit rating of non-woven abrasives does not utilize codes and numbers like coated abrasives. Instead, non-woven abrasives can be classified into a simple rating and color system:

  • Micro-Fine or Grit-Free (Gold or White)
  • Very Fine (Grey or Blue)
  • Fine (Blue or Green)
  • Medium (Maroon or Black)
  • Coarse or ‘Extra Cut’ (Tan or Brown)

 

There are multiple forms of Non-Woven Abrasives:

  • Hand Pads
  • Belts
  • Discs
  • Sheets
  • Rolls
  • Flap Wheels
  • Convolute Wheels
  • Unitized Wheels & Discs