Nylon cylindrical roller brush is commonly used for aluminum sheet cleaning, degreasing, polishing and other processes. There are PA6, PA66, PA610 and PA612 for making roller brush for rolling mills.
 
But nylon material has a critical defect, which is high water absorption. When it works in water, this material will be soft and leads to bad result of degreasing. Meanwhile, nylon is not resistant to strong alkali. That will largely reduce its service life. For these reasons, by adding nano-montmorillonite into PA66, a new material is invented, called DT-Bellon. This new material is with low water absorption and high alkali resistance. After testing, the polishing performance is twice better than PA66, and service life is triple.

Abrasive filament is also a good choice for producing brushes for aluminum rolling mill.

• Silicon Carbide Abrasive Filament Cylindrical Roller Brush
  Adding silicon carbide micro powder into PA66. The shape is multi-angled, and aluminum sheet surface will be bright. Grit sizes are from #180 to #800.
• Aluminum Oxide Abrasive Filament Cylindrical Roller Brush
  Adding aluminum oxide micro powder into PA66. The shape is multi-edge, and aluminum sheet surface is matte. Grit sizes are from #180 to #800.
• Diamond Abrasive Cylindrical Roller Brush
  Adding diamond micro powder into PA66. Due to its sharpness and stiffness, it's used for mirror polish. Grit sizes are from #320 to #3000
• High Temperature Resistance Cylindrical Roller Brush
  Adding PPS or PEEK into abrasive filament. Melting point is up to 300 degrees to 355 degrees.
• Multiple Filament Cylindrical Roller Brush
  This filament is origin from Hotani. During working, it will leave no scratching on metal surface