Whatever the graphic, the wall underneath decides how well it goes on and how long it stays looking right. Adhesives need a clean, sound surface to grip. Bumps and cracks show through thin media. Damp walls cause lifting and staining. A short inspection and some basic preparation prevent most installation callbacks.
Assess the surface
Before quoting or scheduling, look at the wall closely, ideally with a light held at a low angle across it. Ask these questions:
- Is it sound? Flaking paint, loose plaster or old wallpaper will fail under a new graphic.
- Is it dry? Signs of damp, condensation or recent plastering mean the job should wait.
- Is it smooth? Cracks, holes, nail pops and heavy texture can telegraph through the print.
- What is the finish? Some paints, particularly those with a very low-sheen or wipe-resistant finish, can be harder for self-adhesive media to grip. Test first.
- Is it clean? Grease, dust and residues from cleaning products all reduce adhesion.
Preparation steps
- Remove anything loose: old wallcovering, flaking paint and failed filler.
- Fill holes and cracks with a suitable filler, let it dry as directed, then sand flush and remove the dust.
- Seal or prime bare plaster, filler patches and porous surfaces with a product the media or adhesive manufacturer recommends, so absorption is even.
- If the wall is newly painted, allow the paint to dry and cure for the period its manufacturer advises before applying any self-adhesive graphic. Paint that is dry to the touch may not be ready.
- Clean the wall with a mild cleaner that leaves no residue, then let it dry completely.
- Test a small piece of the actual media in an inconspicuous area and check its grip, and its removal if it is meant to be removable.
Matching media to the wall
Not every wall suits every product. Paste-applied wallpaper copes with some unevenness but is a commitment to remove. Self-adhesive vinyl needs a smooth, well-cured surface. A self-adhesive woven fabric such as Phototex is designed to remove in one piece without damaging the surface and can be repositioned and reused, which makes it a good fit for rented homes and temporary installations. It still needs a clean, sound wall to perform well.
Room conditions
Install in reasonable room conditions, avoiding very cold, hot or humid spaces, and follow any guidance on the media data sheet. Let rolled media acclimatise in the room before installation. In kitchens, bathrooms and other areas with moisture or splashes, consider whether the print would benefit from a protective coating; our moisture protection guide explains the options.
Unsure whether a wall is suitable for the graphic you have in mind? Ask the Landor team on 01252 624 411 or via our online form.