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Old 03-08-2013, 10:46 PM   #1
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MAPEI Mapelastic AquaDefense?


Hello,

I'm almost ready to install 18" x 18"porcelain tile on bare slab in a small guest bath, about 30 sq. ft..

There is a <1/16" crack that runs across the slab in this room:





The plane across the crack is flat, and the slab is 20+ years old. The slab is on grade, and a plastic sheet test doesn't show any moisture problem.

I'll be using the Mapei Ultraflex LFT to set the tile. I don't want to use Ditra but I'm wondering if a coat of the Mapei Mapelastic would be in order?

Thanks in advance, as always.


Last edited by clambake6; 03-08-2013 at 10:48 PM. Reason: Added info
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Old 03-09-2013, 02:20 PM   #2
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MAPEI Mapelastic AquaDefense?


I think that would be a very good plan.

Jaz

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Old 03-09-2013, 06:46 PM   #3
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MAPEI Mapelastic AquaDefense?


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Originally Posted by JazMan View Post
I think that would be a very good plan.
Great! Thank you for your response.
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