For heavy sanding and stripping, you need coarse sandpaper measuring 40- to 60-grit; for smoothing surfaces and removing small imperfections, choose 80- to 120-grit sandpaper. For finishing surfaces smoothly, use a super fine sandpaper with 360- to 600-grit.
In this manner, what does hook and loop mean sandpaper?
Hook-and-loop sandpaper has a backing made of a material similar to Velcro. It has hooks and loops that are used to attach the sandpaper to a machine such as a random orbital sander or disc sander. … Hook and Loop is a generic name for Velcro.