Can You Paint Over Wallpaper Before And After. Before painting your walls make sure that they are clean smooth and completely dry. Begin by filling any holes or dents in the surface with drywall joint compound.
Removing old paper or many layers of paper often causes unexpected damage to walls. Depending on your surface you may need to use an undercoat. When painting over wallpaper it is important to first make sure that the wall covering is clean and shows no signs of lifting at the edges or seams Spillane says.
Wait for the primer to dry before painting over wallpaper.
When painting over wallpaper it is important to first make sure that the wall covering is clean and shows no signs of lifting at the edges or seams Spillane says. According to most home improvement experts as well as the National Guild of Professional Paperhangers wallpaper should be removed before painting whenever possible as youll experience better results and fewer problems down the road source. Once the walls are clean and. Use an oil-based primer-sealer not a water-based product.