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 Stone & Tile Restoration

What gives stone its color?

The color in all stone is derived from minerals and organic matter. For example red marbles are red due to the presences of iron. Green marble gets its color from a mineral called serpentine and so forth. There are several excellent books on rock and... Read More

I was called to remove a heavy wax coating on a granite floor. I’ve discovered that the janitorial company has been stripping and waxing this floor for several years. The problem is the granite is developing small pits and appears to be falling

The problem may be with the strippers that have been used. Many strippers have an alkaline pH and this can lead to the deposit of alkaline salts in the pores of the granite. If the stripper is not rinsed throughly and any stripper residue is left... Read More

I am polishing a black marble floor and am having trouble with the grout lines. The polishing powder is leaving a white residue in the black grout lines and it is difficult to clean them. Do you have any suggestions?

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

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