The surface should be cleaned and allowed to dry.
Can you tile on painted concrete.
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.
The board is then pressed into place on the wall and adjusted for plumb and level.
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.
The surface must be free from dust dirt grease oil or other contaminating material.
Tile cannot be attached directly to painted concrete as the thin set will not adhere well to the paint.
The tile will be fine.
Can i install ceramic tile over a painted concrete floor without removing the paint.
Suggesting another product over the concrete is overkill.
Installing tile over painted concrete adds a few extra steps to your tiling job.
You need to prepare by removing the paint and scarifying the surface to open up the pores of the concrete.
This process will work on painted or bare concrete.
A scratch coat will give the mortar something to hold on to instead of the layer of paint over concrete.
A tile consultant michael byrne responds.
First a surface more textured and solid must be applied over the painted concrete.
Tiles can be set over the construction board panels using unmodified.
Painted surface must be checked to ensure it is firmly adhered with no sign of flakiness.
Unfortunately the tile cannot be adhered directly to the painted surface.
All paint will need to be removed before you begin installing the tile.
Existing ceramic tiles must be checked to ensure that they are firmly fixed with no signs of any loose or drummy tiles.
Paint used on concrete will not bond with the tile adhesive.
If the concrete has been sealed better adhesion may be achieved by going over the concrete with a grinder to create a rough surface.
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.
If you use a stripper to remove the paint be sure to flush it thoroughly to remove any residuals.
You want water to readily absorb into it.
This surface is called a scratch coat.
Steam off the paint with a steam mop and rough the concrete up a bit.
Mortar cannot be installed directly over painted concrete itself.