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- My shower floor started yellowing right after it was installed. How do I get rid of this? Q. I have a shower floor that has small stones of different colors and it is yellowing in 3 places. This started right after it was installed. Someone told me it was iron in water. How do I get rid of the yellowing? It's in the grout and on t... Read More
- Does sealer make marble more porous over time? 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 i... Read More
- Why is my brand new marble paver patio turning yellow? Q. I am having problems with my new marble paver Florida patio. The stone is turning yellow on the edges. I have some success with cleaning, but the yellow keeps returning, and it seems to come back a little worse each time. Thank you! A. The st... Read More
- How to Remove a Yellow Stain on a Marble Sink Q. I have yellow staining on my marble around my sink. I believe it's from the water sitting around the edge of the sink. Do you have a product you'd recommend to remove the yellow? I can't feel it like an etched stain. Would the poult... Read More
- Reasons why white marble can turn yellow, and possible cures for the problem. Q: Why did my beautiful white marble suddenly begin to turn yellow? A: Unfortunately, this problem is not uncommon. There are a number of causes for yellowing marble—and a number of possible cures. The most common culprit is iron, which c... Read More
- What To Do About Cracking, Peeling Marble Coating Q. The resin coating of our Knoll Saarinen marble top table has been cracking and peeling for the past year. We don't know what to do. Any advice? A. Some manufacturers use resins to create a topical polish, which look amazing... at first. Ho... Read More
- What can we do to clean marble lobby floors in our various commercial buildings? Q. What can we do to clean marble lobby floors in our various commercial buildings? A. The yellowing and graying of certain Italian and Greek white marbles is a common problem that I see all over the world. There are several possible causes for th... Read More
- Why White Marble Turns Yellow: Causes and Cures Fred M. Hueston, PhD Sitting in my office one morning I received a call from a very upset home builder. He told me he was building a two million-dollar home on the west coast of Florida. They had installed nearly 3500 square feet of a white statuario... Read More
- Iron stains and stones Q. The floor of my shower stall is covered with grouted sliced stones on mesh. The contractor sealed the floor with a "wet-enhancing" sealer about 3 years ago. I've noticed that the lighter stones have become rust-colored. (We have hard water an... Read More