Q. Hi. I watched your youtube video and need advice. I spilled sea salt hair spray on my marble counter and it left a stain. I believe that it is an oil stain. What kind of poultice should I create to remove the stain? A. Natural stone is porous,... Read More

Q. I accidentally left a candle on my wood burner, lit a fire and the wax melted. The candle was on a saucer which collected most of the wax. When I moved the candle and placed it on the hearth, I spilt the wax. After it had cooled down I lifted the... Read More

Q. I would like information on how to remove water etches (?) spots that are not smooth when I run my finger over the spot. It is a honed finish and the spots are more like water spots. There is no colored stain, it is more like dull spots scattered... Read More

Q. I believe I have spill marks of vinegar and also some cleaning solution that stained my marble and limestone floors. I need help in which poultice to use.   A. Marble and limestone are calcium-based stones, which means they are sensitive to acids... Read More

Q. I spread a dark blue hand towel on the counter top and was working on it, when I removed the towel a couple hours later a darkened stain/discoloration was left behind that outlined where the towel was. I tried Stonetech Cleaner on it, but it won... Read More

Q: Looks like my installer got plumbers putty on my brand new unsealed natural stone sink, leaving spots or smudges. Any way to remove therm?A: They can be removed with a technique called poulticing. You will need to use a strong solvent such as... Read More

Q. How do I take wax off a travertine floor? A. You will need to use an alkaline stripper / degreaser. Be careful to follow the instructions on the label. Fred Hueston Chief Technical Director, SurpHaces President, Stone Forensics Read More

Q. Hi! We have outdoor noce travertine - unsealed - on our pool patio deck. We had a "dog party" last week and one dog loved to swim. He repeatedly jumped in our pool and then ran through our plant beds, tracking mud all over our travertine. The mud... Read More

Q. I have a natural stone floor in a house I was renting. I was attempting to clean the grout and I bought a grout cleaner. I used it and now it looks like it has lightened (almost bleached to a degree) the stone where it touched it. I looked on the... Read More

Q. Hi, there are gray spots where lime juice spattered on my Pietra Cardosa counters. How can these spots/stains be removed? A. What you are describing are etch marks as a result of the acid from the juice. If the damage is very severe, you'll... Read More