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Old 05-16-2012, 10:28 AM   #1
mr5890
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New Pebble Shower Floor Turning Yellow

Hello
We recently had a pebble shower floor installed (3 weeks old) and before it was installed I used Tilelab sealer on it. It was grouted with Spectralock epoxy grout. The grout set up for almost 2 weeks before it was used, but the stones now have a yellow tint to them that was not there before. This picture exaggerates the yellowing...it's not actually as bad as it appears, but it is noticeable, especially up against the white wall tile.

The grout itself has not yellowed. Does anyone have any ideas on what could cause this, and more importantly what I might try to correct the situation? I have tried to contact Laticrete twice, but haven't been able to speak to anyone. Any ideas are welcome.
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Old 05-16-2012, 11:21 AM   #2
mr5890
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I haven't tried cleaning with anything yet. Should I try stripping the sealer? Is that even possible?
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Old 05-16-2012, 11:31 AM   #3
mr5890
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I can try that and see what happens. What should I be looking for, and why use a scrubby rather than just wipe on with a cloth?

Thanks!
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Old 05-16-2012, 11:38 AM   #4
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I believe the TileLab sealers from Home Depot are topical, therefore just sit on top of the stones. Water gets through (since they're not intended for wet environments) and causes this sort of thing. At least thats what I was told when I had the same sort of situation in my slate shower. I used a different brand, but a topical sealer nonetheless. My tile was dark so I didn't notice any yellowing, but mine started flaking off in areas. If you can, I suggest stripping the sealer and using something that penetrates, like Dupont Bulletproof. I'm not a pro though.
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Old 05-16-2012, 03:37 PM   #5
ceramictec
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Quote:
I used Tilelab sealer on it. It was grouted with Spectralock epoxy grout.


If you grouted the pebbles with the epoxy grout the epoxy itself would seal the stone. I remember hearing someone at Laticrete tell me their epoxy was also use to seal granite and other things. so the resin would somewhat seal the pebbles. you didnt need to do the other sealer.
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Old 05-16-2012, 03:39 PM   #6
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did you apply the TileLab sealer on prior to grouting with SpectraLock ?
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Old 05-16-2012, 04:48 PM   #7
jadnashua
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If the pebbles were not cleaned perfectly from any grout residue, the resin from the epoxy grout may be what's yellowing. That might be a major pain to eliminate, if that's it.
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