How To Clean A Concrete Floor Before Tiling

If your concrete floor is plain and you don t have to worry about damaging a finish you can use harsher cleaners like bleach ammonia and hydrogen peroxide to clean stubborn stains.

How to clean a concrete floor before tiling.

Let the surface of the concrete completely dry before installing tile. Rinse off and continue with a full floor clean. The compound will expand and rise to reach the correct levels of the rest of the concrete. Allow the compound to dry for 24 hours before starting on your tile.

Dilute one part cleaner in three parts water and spray on the affected area. Scrub up the suds and let it stand for four to six hours. You re always going to wipe dust off of concrete that s normal. Allow the floor to dry thoroughly.

If necessary clean the concrete floor with an appropriate cleaner to remove the grease dirt and other residues. Of course some of the ppl asking don t know that. Wet the area and pour or spray either lemon juice or vinegar on the rusted spots. Add 2 to 3 tablespoons of a good degreasing cleanser such as dishwashing soap or trisodium phosphate to a gallon of warm water and scrub the floor with a scrub brush.

Vacuum the residues and the particles before starting the tile installation as to make sure the thin set will lock them to the concrete sub floor. You will need to use an acid based solution like muriatic acid to rough up the surface if the top of the concrete is still smooth. If it s real dirty a mild detergent is ok but you need to be able to rinse well. Remove dirt debris and grease by cleaning the entire concrete surface with soapy water.

Slowly pour the compound into the areas that you previously marked as low. Take some water and mop the surface to remove any dirt dust or small debris. 2 lay a carpenters level across the concrete floor to detect the presence. Use a trowel to spread the compound until it is as flat and smooth as possible.

Leave for 20 minutes before scrubbing in circular motions with a stiff bristled brush.