Restoring Blemished Surfaces for a Perfect Finish. Let one facet dry earlier than applying compound to the other aspect. When the second coat is totally dry, sand flippantly to smooth out any bumps. From the smallest dent to giant holes, there are several ways to repair surface defects on your walls. To begin this restore, first sand the surface easy around the gap so the adhesive mesh will easily persist with the surface of the wall. Firmly press the patch in place around the edges of the outlet. Then apply some extra drywall compound to utterly cover the tape. Today,…