You should either strip or bead blast the concrete and thoroughly clean it.
How to install tile on a painted concrete floor.
Once the concrete floor is paint free the tiling process is similar to most other floor tiling jobs.
A concrete sealer prevents moisture from staying underneath the ceramic tiles.
But there is a solution to the problem.
Is it okay to place ceramic tile over painted concrete floors.
Water should readily absorb in the concrete as an indication that it.
The house was built in the late fifties and the slab floor has been painted at least once.
Installing self adhesive vinyl tiles over concrete is not always easy especially if you remove carpets from the concrete base.
If you want to install the tiles properly you should prepare the floor making sure that the surface is clean without any remains of sealers adhesive or anything else.
Install tile directly on the concrete floor in many cases you can lay tile directly on the concrete surface which is naturally hard and durable.
The floor is a 4 inch poured concrete slab over an unheated utility room.
The next step is to apply a concrete sealer on the floor surface.
Unfortunately the tile cannot be adhered directly to the painted surface.
How to lay ceramic tile on an enamel painted floor.
A muriatic or other acid based cleaner is usually the best way to completely clean the concrete prior to installing tile.
If the paint comes loose so does the tile.
This is an optional step but can really benefit your tile installation in the long run.
Ceramic and porcelain tile are so frequently installed at or above grade level on a cement board underlayment or directly on plywood that it almost seems novel to install tile directly on concrete.
All paint will need to be removed before you begin installing the tile.
It will also provide a stronger adhesion between mortar and concrete.
Yet this application does make sense since concrete is heavy solid and is typically thought of as an unbending uncompromising material.
Yes if the existing floor is in good sound solid condition.
Ceramic tiles will not adhere to an enamel painted floor because the surface is too smooth.
Installing tile directly on concrete.
Step 3 plan your layout.
Paint used on concrete will not bond with the tile adhesive.