Go back over any spots that have remaining paint with your.
Tile over painted concrete walls.
Water should readily absorb in the concrete as an indication that it is suitable for bonding the tile to it.
You can get this from construction or hardware stores.
First a surface more textured and solid must be applied over the painted concrete.
Rent a circular concrete sander from an equipment rental store.
A latex based thin set adhesive should be used over the latex based paint.
While you can install tile directly on concrete problems erupt when the concrete cracks or shifts.
A scratch coat will give the mortar something to hold on to instead of the layer of paint over concrete.
If the paint comes loose so does the tile.
Painted concrete can be made porous with sandblasting or other hard abrasive actions.
Ventilate and dehumidify the area before during and after the installation because basement walls are usually susceptible to moisture.
This surface is called a scratch coat.
You can leave the paint on drywall provided there are not several coats and the tile epoxy will adhere with no problem.
For tiling over tiles in bathroom walls you ll need to set up sheets of waterproof membrane in between the concrete wall and tiles.
For application over an uneven concrete surface a lightweight waterproof construction board.
If you choose to try to bond the tile to the paint then you need determine what type of paint it is.
Inspect the concrete surface.
If the walls you want to tile are concrete walls with paint on them remove the paint before you install tile so the tile adhesive has something to grab onto and hold the tile in the correct place.
Before beginning a tile installation over a concrete wall perform an inspection to look.
You should either strip or bead blast the concrete and thoroughly clean it.
How to install tile on a painted concrete floor step 1.
An epoxy based paint requires an epoxy adhesive to bond to it.
Vacuum up all loose dust debris and paint residue.
Tile cannot be attached directly to painted concrete as the thin set will not adhere well to the paint.