Wet Sanding Drywall

Learn wet sanding drywall as an excellent alternative to dry-block sanding of drywall.

It’s safe and effective because of the fact that there is no dust released into the air. This in turn can be extremely beneficial to someone who is allergic to dust in general, and will permit them to safely do minor drywall repairs within the household.

It is also beneficial in that since there is no dust that is released in the air, there will be no dusty surfaces to clean up after.

Keys To Proper Wet Sanding Technique

wet sanding drywall

  • Use a sponge specifically designed for dust-free sanding and wiping drywall when wet. It is typically slightly larger than your usual kitchen sponge. It has an abrasive (for rough sanding) surface on one side, and a typical spongy/porous surface on the other side.
  • Dampen the sponge only. Don’t sand when dripping wet. This will only foul up the layer of mud on the patch, and might lead to some rework.
  • Wring out the sponge often. If you don’t, you will be simply slopping wet joint compound around in circles on the patch job.
  • slight swipe of the palm of your hand over affectedarea will help to smooth over any wrinkles or ridges as a result of wet sanding

Be careful not to over-sand your area in one session, as heavy moisture on one area in a short span of time can result in more harm than good. If you have to, do as many wet sanding applications as necessary. 2 – 4 times should be sufficient.

With this method done properly, the result will be every bit as good and smooth as any dry-block job, but with no dust to breathe – or clean up. Just as with anything else, the more you do something, the better you’ll get.

I recommended wet sanding for smaller repairs – at least at first until you get the hang of it. The smaller the better though, as larger areas will finish better when sanded the conventional way.

This type of sanding sponge can be purchased at any home improvement or local hardware store.

[Update]
With newer types of drywall compound (mud) out on the market, you can sand away to your hearts content with the resulting drywall dust dropping virtually straight down to the floor.

No clouds of dust hanging in the air and flowing throughout the room (s) to foul up everything. You can find this “dustless” type drywall mud at most any big do-it-yourself store or hardware store.