Expert Answers in cleaning

ANSWER - I assume you mean silicone sealant (caulking).  Silicone can normally be removed with a razor blade if none carefully. A textured and polished porcelain is normally resistant to scratching, but you should be careful…

ANSWER - True geologically classified granite stone is normally very resistant to staining and chemicals.  There are some stones sold as granite that are not true granites and they could be more susceptible to staining and…

ANSWER - I do not know of any products that are recommended for cleaning tile that make the tile slippery.  If you use products not recommended for cleaning tile, then who knows what you will…

ANSWER - Whatever you do, do not use any acid, and in particular do not use muriatic acid, which is very corrosive and could etch and damage the tile. If the gray stains were not…

ANSWER - What you describe sounds like the installer tried to clean the porcelain ceramic tile with too corrosive of a acid cleaner.  The acid likely etched the surface of the tile, which permanently damages…

ANSWER - Chances are the spots you see are etched spots.  This is caused by acidic substances such as juice, alcohol, etc. coming in contact with glazed tile where the glaze is acid sensitive.  Normally…

ANSWER - Chances are the stone that you have may be over-burden granite or a type of metamorphic stone called gneiss, which commonly is sold as granite. Often these types of stones are very colorful…

ANSWER - The ceramic tile you described is either a glazed porcelain tile or an unglazed porcelain tile.  Either way the surface of the tile is technically impervious with an absorption rate of less than…

ANSWER - The easiest way to remove a cement film off flagstone or tile is using an acid if done correctly.  If there is thick excess grout on the flagstone then that should be scraped…

ANSWER - Yes, travertine and other natural stones can be restored by cleaning, filling voids, re-honing the surface, and sealing.  If the grout joints are…