Coatings for wood flooring include:
Tile flooring can be glazed or unglazed. All tiles are somewhat porous, but unglazed tile is more porous. A penetrating or surface sealer is a must for dense unglazed or porcelain tiles, but the best way to make the smart choice is to ask the tile supplier about the recommended application approach.
This level of caution is especially true if the floor uses a dark grout and a light color tile—a very effective architectural combination. In this case, the sealer application prevents the grout from staining the tile. The grout will wear longer, look better, and resist mold and mildew better if workers seal it with a sealer after the grout is thoroughly dry.
Specifying Floor Coatings for Performance
Concrete and Masonry Issues with Floor Coatings
Recommended Coatings for Tile and Wood Flooring
Construction Considerations when Coating Floors