White Statuary Marble on floors and walls - grout

winesnobMay 18, 2012

My tile setter is doing an excellent job but I am sort of into every aspect of this design and project, my question what kind of grout, my GC does not want to use sand.....we have been told use a product called Grout Shield, it is the liquid used in the grout instead of water, suppose to prevent mold. The tile is of course set very close together.

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First, your GC is right. Any time you use a grout joint smaller than 1/8", you use an unsanded grout. The only exception to this is with Latictrete's Permacolor grout. The sand in it is so fine that it can be used in any size grout joint. As for the grout shield, to me it's a waste of money. With only one exception that I can think of off hand (Hydroment) every grout manufacturer makes their grouts with modifiers already in them, and to add another polymer to it is not only redundant and wasteful, but may also be detrimental to the performace of the grout, due to a possible reaction between the different polymers.

    Bookmark   May 18, 2012 at 10:34PM
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We used TEC XT grout for two of our bathrooms. It is supposed to be more stain and crack resistant than other cement-based grouts, and has anti-bacterial/anti-fungicides built in. We used both sanded and unsanded.

    Bookmark   May 18, 2012 at 10:49PM
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Also look into TEC Powergrout.. It is mold, crack, and stain resistant. It also has a very fine sand which will be ok for your joint size and will not scratch the marble.

    Bookmark   May 18, 2012 at 11:11PM
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thank you everyone on your comments..It is just such a final aspect of this project that the tile is the FINAL oh we are finally here that you want to get it all right. I trust my GC but good thing about GW, no one has a dog in this fight and you get candid comments.

    Bookmark   May 19, 2012 at 1:07AM
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