Often called “sandpaper,” coated abrasives have a wide range of uses in the manufacturing industry.
The term “coated abrasive” indicates how the abrasive is affixed to each product. Coated abrasives consist of a backing material such as paper, woven cloth, cloth/paper combination, sponge, polyester film, or vulcanized fiber. An initial ‘make’ coating of resin is applied to the backing, the chosen abrasive grain is then electro-coated onto the surface, followed by a second or ‘size’ coating of resin to lock in the abrasive particles.
Many products need an additional coating applied to maximize performance. A few of the common coatings include grinding aid, stearate or anti-static. The additional coatings should be matched up the application to receive the full benefit of the product. Following an oven cure, the resulting material is converted into various forms, shapes and sizes of belts, rolls, discs, or wheels.
Not only are coated abrasives categorized by their configuration (belts, discs, sheets, wheels, stones), but also by the abrasives each contain. The most common grains used are aluminum oxide, silicon carbide, zirconia alumina, and ceramic. Additionally, exotic abrasive such as industrial diamonds are used for more specialized applications.
Coated abrasives are created with a wide range of grit sizes as well. Larger grit-sized products like 24 or 36 grit are best for blending weld beads or stock removal. The finer grits, anywhere from 800 to 3000 grit, will accomplish a clean, smooth surface finish and polish.
Coated Abrasive Products Available:
- Sanding Discs
- Resin Fiber Discs
- Flap Wheels
- Flap Discs
- Shop Rolls
- Quick-Change Discs
- Cartridge Rolls & Spiral Bands
- Specialty Products (sanding stars, overlap discs, cross pads, etc.)
Coated Abrasive Applications:
- Stock Removal
- Surface Preparation
- Fine Finishing