Abrasive Grains: Choose the right sandpaper for your ...
· Sandpaper is actually a type of coated abrasive, meaning, it is made from some type of abrasive "grain", such as the types we are going into in this article, which is affixed to some kind of backing – often paper, cloth, plastic, or even foam sponges or mesh. There may or may not be other added fillers or coatings, such as stearation.