Information About Coated Abrasives

Coated abrasives refer to abrasives that use a binder to adhere abrasives to a flexible substrate, also known as flexible abrasives.
Abrasives made by adhering abrasives to a flexible substrate (cloth or paper, etc.) with a binder. Coated abrasives have sheet-shaped (rectangular), disc-shaped, ring-shaped and other special shapes (see color pictures). The main varieties are sandpaper (paper) and sanding belts. They are often used mechanically or manually. They are widely used for grinding, polishing and grinding of non-metallic materials such as metal materials, wood, ceramics, plastics, leather, rubber and paint putty. Coated abrasives are composed of three parts: abrasives, binders and substrates (see figure).
Commonly used abrasives are artificial abrasives such as corundum, silicon carbide and glass sand, and sometimes natural abrasives such as garnet and natural corundum are also used. Binders include leather glue, bone glue, casein glue and synthetic resin glue. The substrates include cloth, paper and cloth-paper composite materials. The manufacturing process of coated abrasives generally includes substrate treatment, primer coating, sand planting, re-coating (covering), drying and cutting.
As a "universal grinding tool", coated abrasives not only have a wide processing range and high grinding efficiency, but also can achieve high dimensional accuracy and low surface roughness.