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Unread 01-05-2021, 03:36 PM   #1
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Marble mosaic grout help.

We have purchased a marble mosaic tile for our shower. The mosaics are glued to a backing as usual, but each tile is touching the next. There is no space left for grout. What should we use for grout and how do we get it into the cracks?
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Unread 01-05-2021, 04:26 PM   #2
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Use any non sanded grout with a smidge more water than the mix calls for along with a good rubber float to act more as a squeegee than a float.

Be sure to seal these before grouting.

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Unread 01-05-2021, 07:19 PM   #3
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Thanks, Paul
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Unread 01-06-2021, 10:55 AM   #4
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if each tile is touching and no space, how would you get ANY grout in there, sanded or not?
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Unread 01-06-2021, 10:11 PM   #5
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I’m afraid I’m going to have to disagree with our friend Paul. That particular mosaic is not appropriate for a wet location like a shower.

While you can make it look like you’ve grouted by following his suggestion, the grout will not be deep enough into the joints to be permanent. And where the tiles are absolutely touching each other, the grout will only exist in the tiniest sliver at the top surface where the pieces meet. Normal expansion and contraction from temperature and moisture variations will cause slight movement between the pieces that will play a pivotal role in grout flaking out.

Sorry, but it’s time to pick another mosaic.

P.S. where you planning this for the wall or floor?
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Unread 01-06-2021, 11:15 PM   #6
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And, if you absolutely MUST have that tile...you can us "wedge" spacers between the sheets.....

If you think hiring a professional is expensive, wait until you see the cost of hiring a amateur.
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Unread 01-07-2021, 08:01 AM   #7
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There are so many individual pieces that make up a single sheet of that mosaic it would take roughly a bazillion wedge spacers to set each sheet.
If I recall correctly my memory is excellent, but my ability to access it is intermittent.
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