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Flooring and Carpeting/lt gray grout soaked into white merima marble tile

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Question
the lt gray grout we used soaked into the white marble. My husband did not seal it first. Is there anyway to get the gray out? I like the taupe/white/warmer tones of the tile and did not want the gray look. It has been over a week and it dried.I honed the surface hoping that would help, by putting on phosphoric acid, but it did not help. Last night I took out a bit of the gray grout in hopes of applying some chemical to clean out the color. Thanks

Answer
Sorry I'm tardy Teri...health issues have had me down for a time...

The problem is that any white or light colored Marble is susceptible to this happening, but even having sealed the surface of the Stone you may not have been able to stop the event happening because this is generating from the "side" of the tiles where you don't seal anyway. There isn't much to be done to be honest at this point Teri. Over time the grey coloring, I suspect, will lessen and be less noticeable to the eye. Also be very careful with any kind of acid wash as this can open the natural pores in the Stone even further and make it much harder to keep things clean. Once the grout has cured it becomes inert and unchangeable for the most part not like a coke or wine stain which is organic where a poultice might help. Sorry Teri, I know it 's not the best news but give it time and I'll bet it will improve. That's it feel free to return anytime...

Perry V.

Flooring and Carpeting

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Perry Vellenga

Expertise

Ceramic Tile/Marble. I can answer questions about floor preparation, tile selection, layout questions, performance of products, expectations of finish, compatabilities, questions about grout and epoxies, evaluating an installer, asking the right questions to check competence...more? 33 years this August 2012/ many years in commercial application from exterior finishes to Mall store fronts/ interior finishes like floor packages in stores inside Malls examples: The Limited, Lerner/NY, Lane Bryants, Bombay Co., Now involved in Residential new construction covering all types of interior finishes and designs.

Experience

I worked in an exclusive field of floorcovering called "Tenant Development" which is by invitational bid only, by way of a National bid list. These are large floor packages usually over 3500 sq. ft. of 18" x 18" Marble and Granite and many other types of Marble and sizes. They are specialty stores where the floor package can cost upwards of $50,000 for one store. I have also done "Structure" stores and J. Riggins stores, Lane Bryant,Express and Body Shop stores where wood flooring is used. Presently work for a National Flooring Company in the Residential new construction arena that covers most interior design elements..Granite Slab tops/wood flooring both job finished and prefinished ect..

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My response's are published all across the Internet and picked up by multiple Interior Design sites and Industry related web sites where people have questions...

Education/Credentials
too many most of which don't count...

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