What Grit Sandpaper For Wall Filler. 9 clever alternative uses for sandpaper. Distinguishing sandpaper grit sizes is important because not every project requires the same.
Use a paint scraper to remove the excess before it dries, then allow the filler to dry.
Find the right grit for your project. What grit sandpaper is best for paint preparation? For general sanding and finishing, the prep hand sanding sheets in a5 are available in fine, assorted, medium and coarse. I was thinking of starting off with 180 grit and then finishing off with 400 grit.