MB Stone MB-11® Touch-Up Etch Remover Marble Polishing Powder, Watermarks Remover, 8 oz Can, Spot Polish Water Stains, Ring Etches, Marble Polishing for Calcite-Based Stone (not for Dark Stone)

I have a white marble bathroom countertop and two beige bathroom countertops. All three were in bad shape, especially around the sinks. Etchings from makeup, toothpaste, various soap products, and spilled CLR made these countertops look pretty bad. Other than calling in the professionals and spending at least $600 to clean up the mess, I decided to give MB Stone MB-11 a try. The bad news is it takes a lot of rubbing using significant force to remove the stains on the countertops. The etching made by the CLR were the hardest to remove. It took multiple times applying the compound to a moist rag and rubbing the etching to remove the stains. The good news is this product saved the day. Following the directions, I was able to remove all the etchings and made the countertops look almost new. It took me the better part of 5 hours to do all three countertops, but it was well worth the effort. I did buy this product from Amazon's warehouse deal for $31, which was a great value. The next project is to seal the countertops, which is needed to prevent future stains. I would highly recommend MB-11 for a DIY project. It is not messy and doesn't require any buffing equipment (just elbow grease). It really works, but it is time-consuming, and I guarantee your hands and fingers will be sore when you are done. The powder goes a long way, I still have 2/3rds of the jar left after completing my project. I have attached a before and after picture of one of the countertops. I would recommend MB-11 and would purchase it again.

Great product that restores cultured marble tile floors that are not protected. it removed acid food stains and polish the marble with buffing. Only need water to apply as a paste. Come with a DYI video when you order. Great price for the amount you get.

This is working on heavily etched marble counter top and floor. While the deep etching, and I mean DEEP isn't leaving it's polished and is looking 1000x better. The light etching is gone. I do one tile at a time and follow the instructions on the jar. It takes some work and DO WEAR gloves. The marble now is shiny and reflective and looks polished. It takes patience and work as it's a polishing compound. I am delighted with the results

This made my etching worse! I followed the directions to a tee! I made the paste with water, used several clean microfiber cloths, lots of elbow grease & polishing, I even watched videos & my lemon stain etching now looks WORSE than before! It is now bright white from this powder! UGH! Beware- may help water spots but not etch from acidic spots. My marble counters are white & gray- light colored. This powder did not do this on the spot I tested, only where the marble was etched.

With out much effort it cleaned all the water spots and stains. I did have to put pressure on some areas but it made my marble counter tops look new. Follow the directions.

AMAZING! A miracle worker! We have African Tempest marble thresholds around our shower and it got etched and I thought it was ruined and I was so upset. This product along with the MB5 cleaner and a lot of patience buffing it with a white cloth. I am beyond impressed and thrilled I don’t have to replace them!

Works okay

I made a big mistake of using a "natural" spray cleaner to clean the marble countertop in my bathroom and was horrified to see all the etch marks that it created, even though that marble was recently sealed. I tried removing the marks with baking soda with no success. I started searching for products to use and this one had the best reviews. I hesitated to buy it because of the cost, as I just needed a little bit. But I just couldn't stand looking at the ugly marks on that once beautiful marble, so I decided to finally buy this product. I'm very happy to say that this product really works! It is easy to use but it does require some physical work. I had to keep scrubbing and apply multiple times until I was able to remove all the tiny and big etch marks. I couldn't be happier with the result. Expensive? yes, but it works wonders!