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Unread 02-06-2020, 06:39 PM   #2
cx
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Join Date: Jul 2001
Location: Boerne, Texas
Posts: 89,813
Welcome back, Pilot.

I've split your post from the other member's thread to avoid confusion on both issues.

I think our folks who may want to help will need to know the color of your grout and the specific cleaner(s) you used that you indicated caused the color change.

Photos may be helpful, too.

I'm not at all sure what a penetrating sealer might do to that type of grout, if anything, but I'm reasonably sure it would not keep it from turning yellow when a cleaner was used.

My opinion; worth price charged.
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