One simple way to enhance your color scheme is to add a dye or pigment to the grout. White grout, even after it has been sealed with a grout sealer (which is recommended, especially for floors), may prove difficult to keep clean.
STEP 7: Cleaning and sealing __ Make sure you sponge off the residue on the surface of the tiles before it has the chance to dry. This step will require several passes over a period of an hour or more. It's a critical stage when you're working with tiles that have a porous or variegated surface. Dried grout can prove almost impossible to remove from indentations.
by Carl D. Wilson on Jul 31, 2018 Ceramic Tile