Ceramic tile stains, do not use metal tools to scrape, also can not use grinding wheel or sand wipe, otherwise it will make the surface layer of ceramic tile damage and become coarse, even scratches, not to use hydrochloric acid or sulfuric acid scrubbing because this kind of solution will erode the cement caulking, resulting in loose tiles.
The correct way to remove ceramic tile stains is: the other stains should be accepted by other ways of removing stains. If the lime water spots, can be wet with a brown brush to wipe off and then used for cloth wipe; Food residue juice and oil, can be warm soapy water scrub, and then wipe with clean water; Cement mud hard trace, then accept talc grinding away.
