This a common condition, especially if the floor is new. When the marble is installed, it is set in a mortar base that is wet; as the moisture leaves the mortar, it carries with it dissolved salts which are deposited on the surface of the stone. This... Read More

Q: My 6 month old shower has a travertine shower pan and a combination of ceramic and travertine tile on the walls. There are hard water marks all over the tile and on the fixtures and I need to get them off. I have already tried some of the... Read More

Q. My unfilled, but sealed (with a lithofin product) travertine needs a good clean before resealing. What is the best technique for this? There is dirt in the holes, which is obviously worse in heavy wear areas. Thanks A. The best way to clean... Read More

Q: I recently had ghibli granite countertops/backsplash installed and noticed a smearing/haze that looks like the granite was not thoroughly cleaned prior to being sealed. I took a rag and acetone and cleaned an area of the backsplash and resealed... Read More

Yes and no. A vacuum cleaner can be an excellent tool for eliminating dust and dirt, but you must be sure that it will not scratch the marble. Check the bottom of the vac and make sure there will be no metal rubbing on the stone as you move it back... Read More

The white deposits are salts, which are bleeding through from the grout joints or from the mortar. An acid wash will be required to remove the salts. If the deposits are heavy, try scraping them off before washing the slate with acid. Several acid... Read More

First try cleaning with some acetone and a clean white rag. Blot the stain with the rag. Do not rub the stain, since this may only spread it around making it worst. Depending on how long the marker has remained on the floor it may require a poultice.... Read More

Q: We purchased and had some beautiful light tan/beige marble installed on our master bathroom floor, 42" glass enclosed (2 sides) shower walls and tub enclosure. After five years, where we attempted to keep the shower walls clean, there is a... Read More

Q. My new marble floor has a white powder on it. It cleans up with water, but keeps coming back. Is there anything I can use to clean it off permanently? A. This is a common condition, especially if the floor is new. When the marble is installed, it... Read More

Q. Can Corian™ and cultured marble be treated like real marble? A. The daily care and cleaning of Corian™ and cultured marble are similar to that of natural marble, but professional repair and restoration methods are different. If your customer... Read More