Natural Stone

Q. Water feature has chlorine residue buildup causing a white stain on natural rock waterfall. How can I remove the chlorine residue from the rock? A. What you are seeing is likely mineral deposits. Chlorinated water doesn’t cause the deposits,... Read More

Q. Stain on white granite is plant food for flowers. Color of stain is blue. Have tried stone cleaner at least 3 time with no success. A. Blue stains from water-soluble fertilizer can be surprisingly stubborn on light granite. The color usually comes... Read More

Q. Started a project of refinishing my kitchen table. I put polyurethane on the table top. I must have spilled some of the poly on my granite. It has hardened. How do I remove from my granite? Thank you! A. If the polyurethane spill is large, thick,... Read More

Q. A blue candle was left on my stone counter. Heat and humidity caused it to stain the stone blue. How do I remove the stain. If a poultice is recommended, what do I use. Thank you. A. There are two concerns to address here. The wax itself may have... Read More

Q. I have a marble backsplash and there is grease from cooking in the grout. How do I get the grease out of the grout without ruining the marble? A. Marble is very sensitive to acids and abrasives, so the goal is to clean the grout without harming... Read More

Q. Any help as to how to remove crayon from stone would be greatly appreciated! A. Crayon marks on stone are a combination of wax and pigment. Both will need to be removed from the surface and the pores of the stone. Start by carefully scraping any... Read More

Q. Our bathroom countertops are dark grey Limestone. There is a 4 inch round white stain on the countertop beside the sink. I THINK IT IS TOOTHPASTE RESIDUE. We are listing our house for sale this week and the stain needs to disappear ASAP. A.... Read More

Q. I am facing a problem with my Calacatta marble floor. Some tiles are getting darker because of the moisture content increment, so is there any chemical that can be used to suck out the moisture from marble, and return it into white color? Thanks... Read More

Q. How do I remove a wine stain from my limestone floors. Also, how do I clean and seal my floors? I’ve had them for 10 years and they need cleaning in high traffic areas. A. Limestone is a beautiful but delicate calcium-based stone, and its... Read More

Q. How do I remove cactus liquid from flagstone? The cactus was trimmed and the liquid splattered on the flagstone. It was not rinsed off right away and left several stains. A. You’re not alone. Cactus sap can surprise people with how quickly... Read More