Make sure the surface is clean, smooth and dry before you start.
1. Remove old wallpaper and/or flaking paint if these (partially) cover the wall. These can cause peeling and prevent the adhesive from penetrating into the surface.
2. Fill and sand all cracks, scratches and imperfections with an emery paper.
3. Clean the surface thoroughly with a degreaser and water so it’s free from dust and/or other residues that can penetrate the wallpaper.
4. Apply a primer if the wall is too absorbent or porous. Test if the product is absorbed and doesn’t leave a layer before applying it. It is recommended to use a white primer so that any colors on the wall have no chance of coming through. It is recommended to use a white primer so that any colors on the wall have no chance of coming through.
5. Allow plastered walls to dry completely to prevent the adhesive from loosening.
6. Has the wall been treated with emulsion? Apply a thin layer of wallpaper paste and let it dry completely so the surface won’t absorb the adhesive too quickly.