If the concrete has been sealed better adhesion may be achieved by going over the concrete with a grinder to create a rough surface.
Can you tile on painted concrete.
You want water to readily absorb into it.
Existing ceramic tiles must be checked to ensure that they are firmly fixed with no signs of any loose or drummy tiles.
Tile cannot be attached directly to painted concrete as the thin set will not adhere well to the paint.
A tile consultant michael byrne responds.
Installing tile over painted concrete adds a few extra steps to your tiling job.
This surface is called a scratch coat.
If you use a stripper to remove the paint be sure to flush it thoroughly to remove any residuals.
Suggesting another product over the concrete is overkill.
Tiles can be set over the construction board panels using unmodified.
This process will work on painted or bare concrete.
Painted surface must be checked to ensure it is firmly adhered with no sign of flakiness.
Steam off the paint with a steam mop and rough the concrete up a bit.
Unless the paint in question is properly applied epoxy paint not the kind that comes in a spray can you shouldn t install ceramic tiles over either paint or paint overspray.
The board is then pressed into place on the wall and adjusted for plumb and level.
First a surface more textured and solid must be applied over the painted concrete.
Painted concrete can be made porous with sandblasting or other hard abrasive actions.
All paint will need to be removed before you begin installing the tile.
Paint used on concrete will not bond with the tile adhesive.
The surface must be free from dust dirt grease oil or other contaminating material.
Can i install ceramic tile over a painted concrete floor without removing the paint.
Mortar cannot be installed directly over painted concrete itself.
Omg these are all rediculous suggestions.
While you can install tile directly on concrete problems erupt when the concrete cracks or shifts.
Once the concrete floor is paint free the tiling process is similar to most other floor tiling jobs.
As long as there are not structural cracks in the concrete floor you can install porcelain tile over it.
After you have a clean concrete slab you can grind down high spots and you can flatten or level the surface by using a patching mortar for tile.
Unfortunately the tile cannot be adhered directly to the painted surface.
The tile will be fine.