Do I need to wipe down drywall after sanding?

Surfaces. Wet a cloth with water and squeeze it out until it is almost dry. Wipe down all of the drywall starting from the top. Drywall must be dust-free before painting, as the dust forms a thin film that may cause the paint to flake from the drywall surface.Click to see full answer. Also question is, should you wipe down walls after sanding?Have never wiped walls after sanding (big buildups only). A good heavy coat of primer will soak it all up. After priming, the walls should be sanded anyway – so any slight fuzz will be eliminated before finish coats.Beside above, can you sand drywall after painting? Uneven drywall seams, popping nails, cracks or other defects can all surface after a wall is finished and painted. You can easily fix them, but you’re probably going to have to re-prime the wall — and you’ll definitely have to paint it again. You use drywall joint compound for almost all drywall repairs. Thereof, do I need to remove drywall dust before priming? Myron R. Ferguson: I have been in the drywall business for over 30 years and I have never cleaned dust off drywall before priming. There is no need, and, as you discovered, dusting can damage the finish. The primer protects the wall from over-sanding, and you create a smooth surface ready for the top coats of paint.How do you get rid of dust after sanding?Dust is the enemy of a smooth finish. Blowing sanding dust off your wood project with an air compressor or brushing it onto your floor can still result in it ending up in your wet stain or finish. Instead, use a bristle attachment on a vacuum to safely capture it once and for all. Or, remove the dust with a damp cloth.