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Q. Help!!! I have honed crema marfil marble. I had a plumber relocate my sink, which required the destruction at least 4 tiles. I purchased tiles to replace the four, however, they are much lighter than what has been already installed. Is there any... Read More

Q. How do we clean white spots from bird droppings on colored concrete? We have a church under construction with tiles on the floor. Windows hadn't been put in yet, and birds came in. The tiles are left stained white from the droppings.Â... Read More

Q. I have a marble table top with a problem, and I need to get some advice on what may have caused it. There are lots of spots plus a few ring shaped marks. The marks cannot be cleaned off. The table was delivered in pristine condition. Is it... Read More

Q. My friend cleans houses for a living, she mentioned she has seen marble showers become porous with time. Is this due to having a sealant?   A. Marble is a porous stone. Sealers can enhance stain resistance by filling the pores of the stone and... Read More

Q. How do I remove stains and etching from my marble vanity? It is polished marble. An area the size of a tennis ball is a bit darker as a liquid soap container tipped over and wasn't seen for a while. The surface feels the same as the counter.... Read More

Q. I damaged the marble countertop at home. The cleaner I used indicated not to be used on marble. I didn't read properly. Now, I see the drops of spray of this cleaner and permanent stains on several areas. There are little round-dots sprayed... Read More

Q. How do I remove a water spot on my honed travertine table top? Should I use marble polish? A. Water spots are actually something else entirely -- etch damage. Because your top is honed, it would not be wise to attempt to remove the etch... Read More

Q. My grandson spilled juice on my travertine floor. I used an acid-based cleaner in an attempt to remove the discoloration, causing the floor to etch. There is an area about six square feet around that is very dull compared to the surrounding area.... Read More

Q. I am making some improvements to an 87 yr old building with limestone floors. There are some copper stains on the limestone, caused by some moisture and the copper lights bleeding. Please tell me how to clean up this stain. A. Use a soft brush... Read More

Q. I have a polished White Carrera marble floor. A solvent-based enhancing sealer was applied about a week and a half ago. It seeped through the outer edges and darkened the stone. Someone recommended a poultice. I want to try it. Please tell me... Read More