How to Prepare the Perfect Surface for Wallpaper Installation

Tips for preparing the right surface for wallpaper

Achieving a perfect wallpaper result starts with a well-prepared surface. It’s essential to take the proper steps when preparing the walls.

1. Remove old wallpaper.
2. Lightly sand the walls and check for imperfections.
3. For painted walls: sand and degrease.
4. Prime sandy, powdery, and unsealed surfaces.
5. Seal thin plaster layers.
6. Prime screw and nail heads, and fill any gaps with a strong adhesive filler.
7. Ensure the surface temperature is at least 10°C, and the moisture content doesn’t exceed 6%.

How to test the absorbency of your wall?

Use a damp sponge to test the absorbency of the wall:

• If the wall absorbs the water quickly and completely: Prime or apply a sealer first. After about 8 hours, you can begin wallpapering using an adhesive suitable for ‘lightly absorbent surfaces.’
• If the wall is already painted and only slightly moistens: Use wallpaper adhesive designed for ‘lightly absorbent surfaces.’
• If water runs off the wall in thin streaks: This indicates a non-porous surface, requiring adhesive specifically designed for sealed surfaces. Always follow the instructions on the adhesive packaging.

With the right surface preparation and adhesive, you’ll be assured of a smooth, long-lasting wallpaper result!