Sand the wall with medium grit sandpaper 80 grit to further smooth the texture creating an even surface on which to apply the tile.
Prep textured wall for tiling.
Remove old fittings such as pins screws rivets etc.
Repair or remove unfit plaster.
Vacuum the wall and.
Sand so that the adhesive can bond.
Sand the wall with a medium grade sandpaper to create that rough surface for the grout.
Make sure there is no dust or heavy particles.
Wash the wall with tsp tri sodium phosphate or an ammonia based cleaner to remove any grease or oil.
Repair any loose or cracked tiles.
How to prepare for tiling a wall.
Remove the tile and prepare the wall according to the corresponding instructions above or tile over the existing tile.
Previously painted textured drywall prep.
How to prepare painted or textured drywall for tiling however first you should remove any signs of paint not firmly or tightly fixed in place.
Start by removing any molding switch plates outlet covers and other hardware attached to the area being tiled.
If existing tiles are beyond repair remove the tile and install a piece of wallboard in its place.
Remove any remaining dust oil or grease with tsp tri sodium phosphate or an.
Get rid of any other paint with paint remover.
Wait for it to dry then use a filler to make it an even surface.
Drag the wide area of the scraper across the paint in all directions to remove as much paint as you possibly can.
Place a wide drywall knife on the wall at a 45 degree angle.
Scrape away any loose or peeling paint or wallpaper.
To do so make sure all of the tiles are intact and secure.
Use either a hand held sander or an electric sander.