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Q. Our limestone fountain is dyed on special occasions. The purple dye is penetrating the limestone at the bottom of the wall. How can the purple dye be removed from the limestone? I have tried acid and chlorine. Any suggestions?   A. Thank you... Read More

The addition of weight will depend on a number of factors. The type of machine you have, how many diamonds you are using, the size of your drive plate, etc, etc. This is the reason you are getting so many different answers. As a general rule of thumb... Read More

I personally recommend Grout Perfect (www.groutperfect.com) though there are many out there. It is a superior product, easy to use ,and has benefits that go beyond just looking pretty, such as constant acting mildewcides and more. Fred... Read More

Graffiti Removal Procedure for Stone, Masonry, and Tile Surfaces By Frederick M. Hueston, www.stoneforensics.com If your beautiful building, wall, or other surface has just become the unintended canvas for graffiti, your first reaction might be to... Read More

All silicon-based impregnators should be tested first in an inconspicuous area. We have found that certain limestones and an occasional granite will become permanently dark. Apply the impregnator and wait at least 24 hours before making a... Read More

First you need to determine why you want it waxed. Do you want to add shine, or is your intention to protect it? If protection is your main concern, I would recommend applying a silicone impregnator over a wax. If you want to increase the shine, you... Read More

This depends on several factors, including how often the shower is used and what type of sealer was originally applied. After identifying the product, refer to the manufacturer’s recommendations. If water is no longer beading on the shower... Read More

Staining from silicon can be very difficult to remove, but not impossible. First remove all the silicone caulking; removal of the stain will require the application of a poultice and a strong solvent such as methylene chloride. Several applications... Read More

Several products are designed specifically for cleaning soot and carbon build-up from marble. Contact your marble supply house. Be sure the product is not an acid; apply it per the manufacturer’s directions and allow it to sit on the marble for... Read More

Let your customer know that urine contains acid which will etch the marble surface. As for the odor, pet shops and supermarkets carry several products which use enzymes to destroy the odor of urine. Follow the manufacturer’s directions... Read More