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Unread 12-01-2020, 09:29 PM   #7
cx
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Join Date: Jul 2001
Location: Boerne, Texas
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Bonding Kerdi to cured RedGard with thinset mortar does not guarantee a waterproof joint. Bonding RedGard to Kerdi does not guarantee a waterproof joint, but at least your joint would be "shingled" in that application method.

Best option would be to use Kerdi for your wall waterproofing.

My opinion; worth price charged.
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