How Do You Seal A Ceramic Tile Floor?
If you’re laying a new ceramic floor and you’re using all-natural, unglazed tile, you have to take the extra step to seal it before and after you grout. It’s important to do this even if you want to keep that flat, no-gloss stone look, because unsealed ceramic is like a sponge for moisture and stains. The sealant will lock them out without adding shine to the floor. The two-step sealing process prevents the grout from staining the tiles while you’re grouting. Vacuum the newly laid ceramic floor tiles, making sure to pull up all dust and debris from inside the spaces between the tiles. Brush a coat of tile sealer over the surface of the tiles with your paintbrush. Brush it only onto the face of the tiles, not in the spaces. Let it dry for an hour or two, then apply a second coat of sealer in the same manner. Let it dry overnight. Spread grout over the tiles, using a grout trowel. Press the grout into the spaces between the tile while scraping it off the flat tops of the surface. Let the
