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Unread 06-26-2018, 04:04 PM   #4
cx
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Join Date: Jul 2001
Location: Boerne, Texas
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The Durock manufacturer requires a modified thinset mortar (meeting ANSI A118.4) for use in bonding to their product.

Not all modified thinset mortars are modified using latex. You might wanna check with your mortar manufacturer and be able to satisfy both requirements.

My opinion; worth price charged.
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