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Stone Myths By Frederick M. Hueston www.stoneforensics.com Over the past 20years I have heard many stories about the reasons stone will fail, turn color, fade or what ever. Many of these stories are funny and almost all of them are just plain... Read More

Q: I had my ceramic tiles acid washed with a mix of 2 parts muriatic acid and 2 parts water. It cleaned up heavy  clacification but tiles remain  smokey  and cloudy. Do I have options to improve the finish other than polishing? Would a... 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

Q. Hello. I just received a new quartzite install, and there is a crack at the sink extending to the hole for the soap dispenser. The fabricator claims it does not affect integrity of the stone, since apparently it's not a full-depth crack. The... Read More

Q. Does grout turn darker when wet and lighter when dry even with color seal? A. Unsealed grout has tiny pores that absorb moisture, which can give unsealed grout lines a darker appearance. Once the moisture evaporates (assuming the moisture is... Read More

Q.  I just finished putting in a new black marble shower wall, literally giving it its first cleaning. I had no idea that some bathroom cleaners would immediately etch into the marble finish. Please, for the love of God, tell me there is something... Read More

What Impregnator is Supposed to Do Ideally, when impregnator is applied to stone, it penetrates into the pores of the stone. However, this isn’t always the case.  What Causes Impregnator to Bead Fred Hueston, Chief Technical Director of... Read More

Applying an impregnating sealer to stone will not make it waterproof. The idea of an impregnator is to make the stone water-resistant. In order to make the stone waterproof we would need to completely block the pores of the stone. If this is desired... Read More

Be sure to cover your poultice with plastic in the case of rain. You may find that the poultice may dry too rapidly outdoors. Try covering with your poultice plastic with a layer of black plastic to block the sun light. TIP To prevent rain from... Read More

The wavy pattern you are describing is usually caused by honing with diamonds that are too flexible. Most of the time there is a flexible cushion where the diamonds attach to the drive pad. The diamonds float over the floor and do not hone the floor... Read More