Previously painted textured drywall prep.
Should you prime walls before tiling.
Prime an area larger than you plan to tile to minimize the cut in work when you paint the rest of the room.
You can apply a tile primer onto floors or even walls.
Or for painting again either primer or a thin skim coat.
Basically your tiles grout and adhesive are being held in place by a thin layer of pva.
If you re not sure if you have lead paint test kits are available.
Tile adhesives work by crystallising when it sets.
Prime the area to seal the new drywall.
This is generally after you have ripped up the carpet or installed the dry wall etc.
You should not tile over wallpaper glossy surfaces lead paint or plywood.
You may tile over existing tile painted or unpainted drywall plaster and textured walls.
I would guess that your best option is to prime things really well to give the tile something less slick to stick to.
Or prime and paint the entire wall room before starting with your tile project.
However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.
When you spread tile adhesive onto a wall the water in the adhesive makes the pva live and stops the adhesive from penetrating the substrate and providing a mechanical grip.
How to prep walls before before tiling plus a sneak peek of the new kitchen tile backsplash.
A tile primer should be used after the substrate has been deemed ready for tiling.