Ceramic Tile and Marble Maintenance Do’s and Don’ts
Do treat crackled or crazed tiles with a pre-grout coating finish. This will prevent the grout pigmentation from penetrating the cracks in the tile. (Generally, glazed tiles do not require sealing).
Do remember that unglazed tile usually requires pre-grout sealing. Penetrating sealer should be used for all areas
Do use a grout additive and a grout release product when installing porcelain tiles — especially rustic finished products
Do use phosphoric acid for heavy duty cleaning of your grout. Grout will need to be resealed with a penetrating sealer after this cleaning.
Don’t use phosphoric acid on any natural stone or marble
Don’t use high-solid coatings (wax) on glazed, porcelain or quarry tiles since they tend to peel and will not bond as effectively.
Don’t use vinegar and water for cleaning tile. Vinegar is acidic and will damage grout and bleach its color. Bleach has the same effect on tile. A neutral cleaner is a better choice.
Don’t use muriatic acid — it is dangerous to people, tile, and grout. Phosphoric acid is a much safer alternative.
Don’t clean the surface of tile with abrasive cleaners or cleaning powders. They will wear down glazed and unglazed surfaces prematurely.