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The best way to clean a flamed granite floor is to use a brush known as a nylo-grit brush. These brushes are designed to reach into the low areas of uneven surfaces such as flamed granite. Nylogrit brushes are available at most janitorial supply... Read More

There are several ways to remove this residue. First try using a solution of stone soap and warm water. Apply this solution with a string mop and pick up with a wet vacuum. Next time you polish granite with black grout lines add a small amount of... Read More

Q. Can I use neutral stone cleaner on my black leather countertops?   A. By black leather countertops are you referring to the leather-look treatment on your natural stone countertops? If so, then yes, of course, a quality neutral cleaner for stone... Read More

Travertine marble typically contains soft fillers that have a tendency to collect dirt. The black spots are probably dirt, and can be cleaned with heavy-duty cleaners. Apply a solution of cleaner and water and allow it to soak on the floor for... Read More

Black marble, especially Negro marquina, is very susceptible to spalling. Spalling is a condition in which the stone flakes off and falls apart. Several factors can cause spalling: excess moisture, choice of setting material and method, the polishing... Read More

It is probably not ruined, but removing this whitish haze can prove difficult. If the black marble is an agglomerate, chances are the alkaline stripper has attacked the polyester resin that binds it together. If so, the surface will have to be honed... Read More

I am assuming that the black marble you are referring to is negro marquina. If this is the case you will find that this type of black marble is very susceptible to spalling of the veins. Over-polishing with either powder polishes or recrystallization... Read More

This is a common problem with black marbles. How often are you using the recrystallization process? I have seen this problem when recrystallization is over applied and performed too often. At this point the floor may need to be re-honed. An... Read More

There are several ways to eliminate the white residue in the black grout lines. First you may want to add a stone soap to your rinse water. Stone soap will clean the grout lines. If this proves ineffective you can add a small amount of black dye to... Read More

Q. I just had natural stone installed in the shower and bathroom. It was sealed using an enhancer. My staff used a squeegee to remove excess water, without using any chemicals. The squeegee left some rubber stains on the new tile. They are in the... Read More