An abrasive is a material, which is used to shape or finish any stuff through rubbing which leads to part of the substance being worn away by friction. While finishing a material often means polishing it to gain a smooth, reflective surface, the process can also involve roughening as in satin, matte or beaded finishes. In short, the material which are used to cut, grind and polish other softer materials are known as Abrasives.
Abrasives are extremely common and are used very extensively in a wide variety of industrial, domestic, and technological applications. This gives rise to a large variation in the physical and chemical composition of abrasives as well as the shape of the abrasive. A coated abrasive is an abrasive grain bonded to a flexible substrate using adhesives. Common substrates are paper, cloth, vulcanized fiber, and plastic films and come in various grit sizes.
Common uses for abrasives include grinding, polishing, buffing, honing, cutting, drilling, sharpening and sanding.