Non-woven abrasive brushes are commonly used in various industries for surface finishing, cleaning, and deburring applications. They come in different constructions, including flap construction and disc construction. Each has its own advantages and is suited to specific tasks. Here’s a comparison between the two:

Non-woven Abrasive Flap Brush Construction:


  • Flap construction consists of multiple overlapping abrasive flaps that are attached radially to a central hub or arbor.
  • These brushes are typically used for larger surface areas and contours.
  • The overlapping flaps provide a more flexible and forgiving brushing action, making them ideal for irregular or contoured surfaces.
  • Flap brushes can conform to the shape of the workpiece, resulting in a consistent finish on curved or uneven surfaces.
  • They are well-suited for deburring, blending, and finishing tasks on materials such as metal, wood, and plastics.
  • Flap brushes tend to have a longer lifespan compared to disc brushes because the wear is distributed across multiple flaps.


Non-woven Abrasive Disc Brush Construction


  • Disc construction involves abrasive material bonded to a flat or slightly curved disc, which is mounted on an arbor.
  • These brushes are often used for precision applications and smaller, more confined areas.
  • Disc brushes are better suited for flat surfaces and are less flexible than flap brushes.
  • They provide a more aggressive cutting action due to the direct contact between the disc and the workpiece.
  • Disc brushes can be used for heavy material removal and cleaning, such as rust removal or weld blending.
  • They are commonly employed in applications like edge deburring, surface preparation, and cleaning of machined parts.


The choice between flap construction and disc construction for non-woven abrasive brushes depends on the specific requirements of the task:

  • Use flap construction for tasks involving irregular or contoured surfaces, where flexibility and conformability are crucial.
  • Use disc construction when precision and more aggressive material removal are needed, especially on flat surfaces.

Ultimately, the selection of the right non-woven abrasive brush construction should be based on the workpiece’s shape, material, and the desired surface finish or cleaning outcome.

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David Thiemann