Stain and Etch Removal

Q. We grouted our beautifully installed marble backsplash with Mapei FA+ (color: rain) without sealing it first. It is now grey instead of white. Is there anything I can do to restore the tile to its natural color? I wonder how much the grout color... Read More

Q. How do we clean white spots from bird droppings on colored concrete? We have a church under construction with tiles on the floor. Windows hadn't been put in yet, and birds came in. The tiles are left stained white from the droppings.Â... Read More

Q. How do I remove grout stains from ceramic tiles? Grey grout has penetrated and stained some of my ceramic wall tiles. Is it possible to draw this out? The stain is from grey grout. The tiles were sealed, but unfortunately one pack had not been... Read More

Q. I have a marble table top with a problem, and I need to get some advice on what may have caused it. There are lots of spots plus a few ring shaped marks. The marks cannot be cleaned off. The table was delivered in pristine condition. Is it... Read More

Q. I waxed my stone tile floors with Quick Shine after removing dried up salt from the snow with clear water. It didn't look the best, because I used a cheap wax mop. Then, I put bleach in water to try and remove the wax and got chalky like... Read More

Q. I used vinegar to clean my shower tile. It is textured marble mesh mounted black and white mosaic tile. I didn't know I shouldn't use vinegar. Now they are discolored. Do I just need to re-seal it? Thank you!   A. The acid in the... 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. I have yellow staining on my marble around my sink. I believe it's from the water sitting around the edge of the sink. Do you have a product you'd recommend to remove the yellow? I can't feel it like an etched stain. Would the... Read More

Q. I accidentally wiped my limestone fire surround on one side with a cloth that had WD-40. It has discolored  the limestone that is stone in color. The discolored area is a few shades darker. How can I bring it back to the lighter color it should... Read More

Q. I damaged the marble countertop at home. The cleaner I used indicated not to be used on marble. I didn't read properly. Now, I see the drops of spray of this cleaner and permanent stains on several areas. There are little round-dots sprayed... Read More