Water helps it move along smoothly, and eliminates all previous scratches and impurities in the surface of the wood. Wet sanding (at least with woodworking) doesn't include additional water, just whatever is withheld in the body of the sandpaper or sanding brick.
Does wetting wood make it easier to sand?
Yes, and no. There are two different methods of sanding to talk about. One is simply using a dry sander on a piece of lumber that might have been left out in the rain or has a high moisture content.
What's the point of wet sanding?
Wet sanding is a process where we use special sandpaper that is supposed to be wet with water. Very wet. The water acts like a lubricant plus helps remove tiny particles so that the sandpaper does not get clogged and create deep scratches. Granted, the act of sanding does create small scratches.16 May 2017
Does water help sanding wood?
Wet sanding is used for smoothing clear wood finishes when fine quality is desired. After building up enough thickness with sealant, varnish, or polyurethane, you use a wet sander to smooth out little imperfections, bumps, or scratches on the surface, and this is an effective way as a final polish.24 Jan 2020
Is sanding with water better?
Wet sanding, which is sanding with the addition of water to act as a lubricant, is less abrasive than dry sanding, and results in a smoother finish. It's best to wet-sand the final finish of a project. Dry sanding removes more material, and smooths rough material quickly.29 Jun 2021
Is wet sanding necessary?
Wet sanding is likely not necessary if you'd prefer a matte or brushed finish. If you want to have this glossy finish, you'll dry sand first and then wet sand. You can always finish off by buffing and polishing if you want to reach a mirror-like finish.6 May 2021
Why do you wet the wood when sanding?
Wet-sanding lubricates the surface being abraded, reducing scratches. The water also carries away loose pieces of abrasive as well as finish particles and prevents the sandpaper from loading up.26 Apr 2017