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Tub or shower wall tile preparation: Apply a layer of 1/2â³ thick cement backer board to the wall studs. Tape any seams and corners with fiberglass tape. Apply thin-set adhesive over the fiberglass tape, and allow it to dry. Roll a waterproofing sealer over the walls, and allow the sealer to dry.
Tile and Grout Cleaning Precautions. 1. Harder is not better. In order to avoid scratching the tile or damaging the grout when cleaning your bathroom, scrub the area in small circle with a soft bristle brush. Don't use a wire brush to clean it. 2.ry wiping the tile or grout using a rag first-if the stain is too tough then move up to using a brush. 3. Use the right product for your type of tile and grout. When using a product for the first time check the product label to see if this is safe to use both for your grout and tile.