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Unread 06-19-2021, 12:36 PM   #2
cx
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Join Date: Jul 2001
Location: Boerne, Texas
Posts: 93,619
Welcome back, Darcy.

I'm gonna vote for crazy. I don't recommend you put anything into a grout that is not specifically recommended by the grout manufacturer. Trouble enough we have with cementitious grouts without potentially adding to the problem.

Pick a good grout (Prism is one) and use it per the manufacturer's instructions.

My opinion; worth price charged.
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