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This is a common problem with many of the marble polishing powders because they all contain oxalic acid. Acids of course will etch marble. To prevent etching you need to wet the areas you are not working on with water and the addition of either a... 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. Hello I am looking for some help to correct water rings on our sealed travertine table. There are splash marks and rings where glasses were placed. This is a brand new table and I'm hoping to fix the rings before sealing the table with a... Read More

Q. I have a ring stain from a cleaning solvent can on my marble vanity. Is there a way to remove the ring and replace the shine? I have experience and the tools for sanding, painting, and buffing cars. I was going to try buffing it like car paint but... Read More

I will assume you are not cleaning it with acid cleaners. There is a possibility that there is some residual acid in the grout or the pores of the stone that bleeds out when you take a shower. Try rinsing the shower wall with a solution of baking... Read More

Q.  I have stains and etch damage on my marble vanity. Can I remove this myself or is this a job for a professional? 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... Read More

Q. We have a stain on our granite top caused by a bag of peaches. The bag leaked and caused a stain in the granite. What do we use to make a mix to remove the stain?  A. The discoloration on your granite may be a stain, or it may be an etch. The... Read More

Q. We installed a marble shower wall, and the contractor used an acid to clean it. We had it professionally repolished, but it keeps getting etched after we take a shower. What’s causing the etching and how do we correct it?   A. If you are... Read More

Q. I recently laid out 30 sq feet of marble tile in an entry way. The tile originally was of a high gloss polished look. After the grouting I had a persistent grout haze that would not go away. The instructions on the grout said to use vinegar and... Read More

Q. I recently washed the mirrors about the marble or granite tiles with vinegar. Now there are spots on the tiles. Is there a way to remove these? It feels a little rough on the top of the spots as if the coating came off a bit. What can I do? A.... Read More