Q. What should I use to get out polyurethane stain on my sandstone step? A. The methods for removing polyurethane from stone will vary, depending on what type of polyurethane caused the stain. Each type behaves differently once it hardens or seeps... Read More

Q. We had a beige sandstone countertop installed for an outdoor kitchen. It is sanded smooth and was sealed with three coats of sealer. I don’t know what kind—just said “sealer” on the can. Some was spilled on our manufactured patio... Read More

Q. I have what appears to be an oily stain (which I think is from candle wax) on sandstone hearth. It‘s been there several years. Is there any hope of getting it out? I tried acetone, and it did nothing. Any help for advice you can provide is... Read More

Q. Hi - i need help identifying the type of stone on my countertop and the best materials to maintain/ care. A. Without an image or description of your countertop, we cannot determine what type of stone you have. Nevertheless, we will do our best to... Read More

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. Please advise what kind of poultice should I use for red shirt dye in Yorkshire stone flag stone. A. Yorkshire stone is a soft, thirsty sandstone that grabs color quickly. The good news is that most clothing dyes are organic, which means they can... Read More

Q. Apple juice stain on bluestone patio that has not been sealed. Stain is new. A. Fresh organic discolorations on bluestone are almost always removable, especially when they’re addressed immediately. Good thing you’re tending to the... Read More

Q. I have a bathroom counter that is bluestone. Before it could be sealed a bottle of liquid hand soap was put on the surface forming a ring. Also several drops of soap were dropped on the surface causing spots. What is the best method for removing... Read More

Q. Some lime juice got spilled on my Bluestone table top and it left a big dull spot. Is there anything I can do to bring back the shine? A. The great news is that in most cases, natural stone can be restored to look like new. Unlike marble,... Read More

Q. My pickling vinegar bottle (7 percent acidic) leaked on my flagstone floor. I made a paste of baking soda and applied it after washing the floor with stone floor cleaner. I let the paste sit for the afternoon to no avail. I would appreciate any... Read More