Using the sander will generate a lot of dust.
Tile over painted concrete walls.
Before beginning a tile installation over a concrete wall perform an inspection to look.
Tile cannot be attached directly to painted concrete as the thin set will not adhere well to the paint.
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.
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.
An epoxy based paint requires an epoxy adhesive to bond to it.
Ventilate and dehumidify the area before during and after the installation because basement walls are usually susceptible to moisture.
If you choose to try to bond the tile to the paint then you need determine what type of paint it is.
Can i put tiles over painted concrete walls.
Rent a circular concrete sander from an equipment rental store.
First a surface more textured and solid must be applied over the painted concrete.
Vacuum up all loose dust debris and paint residue.
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.
Go back over any spots that have remaining paint with your.
A latex based thin set adhesive should be used over the latex based paint.
You should either strip or bead blast the concrete and thoroughly clean it.
Mortar cannot be installed directly over painted concrete itself.
For tiling over tiles in bathroom walls you ll need to set up sheets of waterproof membrane in between the concrete wall and tiles.
Painted concrete can be made porous with sandblasting or other hard abrasive actions.
How to install tile on a painted concrete floor step 1.
While you can install tile directly on concrete problems erupt when the concrete cracks or shifts.
This surface is called a scratch coat.