How To Paint Over Wallpaper Uk. When painting over wallpaper go for an oil-based rather than a water-based primersealer. Take a clean rag and start wiping down the walls.
This adhesive greatly interferes with paint adhesion and will cause paint to separate into what is known as a crackling effect. You will need to use an oil-based primer before you begin to paint over your wallpaper. Although it is as simple as painting a wall in theory wed recommend covering a few extra steps to make sure the finish is optimal and avoid any surprises down the line.
If its lifting up anywhere use wallpaper glue to secure it.
Place the wallpaper on the wall and smooth it on straight. Between the adhesive and siding it will slide easily if adjustments are necessary. With a slightly damp cloth wipe away dust. If you are in this situation the good news is that painting over wallpaper is fairly easy if you dont want to disguise the texture but you do want to update the colour.