Can I Skim Coat Over Painted Walls. Paint or wallpaper over the repair as desired. I'm going to be skim coating over some knockdown texture on a wall.
Plastering on existing painted walls is possible if the paint is in very good condition (in skimming with thistle multifinish adds additional sound insulation to many of the gypwall classic systems applied in one coat by roller or brush onto the background, this can then be plastered over when dry.
As long as the surface is ready for repainting, it will also be ready for skim to skim a whole wall, work on a manageable swath of a few feet at a time. Paint or wallpaper over the repair as desired. The paint roller trick is a great technique for skim coating over walls that have a lot of cosmetic damage, after wallpaper removal or in this case a bad knockdown texture job. I also thought about wallpapering, but is it ok to wallpaper over paint?