The board is not being prepared for painting papering or any other surface finish.
Tiling over a painted wall.
Wall preparation is an important step when you in install tile on a painted wall.
Weight of the installation.
Remove any remaining dust oil or grease with tsp tri sodium phosphate or an ammonia based cleanser.
However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.
Can you install tile on a painted wall.
You should not tile over wallpaper glossy surfaces lead paint or plywood.
Choosing the right tile.
Then give a couple of coats of pva or sbr bond.
Choose the right materials for the location.
If your paint tests positive call a professional.
Things you will need orbital sander 80 120 grit sandpaper safety glasses dust mask rags tape measure pencil 48 inch spirit level mastic or thin set mortar grooved trowel tile spacers tile cutting tool grout grout spreader sponge grout haze remover optional distilled white vinegar optional.
Start by removing any molding switch plates outlet covers and other hardware attached to the area being tiled.
For instance if you are tiling over a painted.
Previously painted textured drywall prep.
Walls can take on a new look when old paint is covered by new tile.
Your good to go just make sure the tiling and grouting is done to a very high standard if water is able to pass to the wall you will end up with damp problems.
If you re not sure if you have lead paint test kits are available.
You may tile over existing tile painted or unpainted drywall plaster and textured walls.
I would suggest marking just below where the tiles are to finish.
Let the wall dry thoroughly.
Answered 19th jan 2017.
Or prime and paint the entire wall room before starting with your tile project.
With the exception of glossy paint any type of painted wall including textured paint can be tiled as long as the wall itself.
Score a line and then using a wall paper scraper see if you can lift the paint from the wall before tiling.
Scrape away any loose or peeling paint or wallpaper.
Additional considerations for a vertical tile installation on gypsum board include.
Only on the boarder tile mind.
The moisture in the cement makes the emulsion go soft and it can loose its grip on the wall.
I tiled on emulsion thinking i would get away with it.