How to Paint Over Wallpaper Successfully
When stripping is not an option, paint over paper for a sound, even finish.
Stripping wallpaper is not always practical, particularly where paper has been layered over old or fragile plaster that might come away with it. In many cases painting directly over sound wallpaper is a sensible and durable solution.
Success depends on the paper being firmly stuck down and on sealing it so that water-based paint does not loosen the adhesive or raise the seams. This guide explains how to judge and prepare the surface before you commit.
What you will need
- Wallpaper adhesive
- Filler and filling knife
- Fine sanding sponge
- Sealing primer
- Emulsion roller and tray
- Angled brush
- Matt emulsion
Check the paper is sound
Press over the whole wall to find any loose seams, bubbles or lifting edges. Painting over poorly adhered paper only exaggerates the problem. Avoid painting over heavily textured or vinyl papers, which respond poorly to emulsion.
Re-stick and repair
Lift and re-paste any loose seams and edges, pressing them flat and wiping away excess adhesive. Fill small tears and gaps along the seams with a little filler. Allow everything to dry fully before moving on.
Sand and seal the seams
Lightly sand filled seams smooth and dust off. Apply a sealing primer over the whole wall, which locks down the paper and prevents the paint from reactivating the paste. This step is what keeps the seams from lifting later.
Cut in the edges
Once the primer is dry, cut in neatly around the ceiling, skirting and any fittings with an angled brush. Work in manageable sections so the edge stays wet for the roller. A tidy cut-in frames each wall.
Roll and recoat
Roll the emulsion on in even, overlapping strokes without overworking the surface, which could loosen the paper. Allow the first coat to dry, then apply a second for full, even coverage. Check the seams as you go and address any that show through.