Can this be used on white Marble wall tiles, I plan on sealing prior to grouting and also after?
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Hello Ray, Thank you for your inquiry! Yes, our unsanded grout can be used on marble tiles, and sealing helps for sure. I would recommend that you do a small mock up prior to grouting your project as marbles tend to be porous and sometimes unpredictable. Even with sealing you could have water absorb into the marble and temporarily discolor it. Please feel welcome to call our product support line at (800) 992-6273 to discuss this further or if you have additional questions. Thank you for choosing MAPEI Products- Product Advisor #9
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