For small bathroom with no tub and a concrete floor do I need to put anything on the concrete before I put in the thinset mortar for my ceramic tiles?
Concrete floor for tile
Apr 13, 2008
1 Replies
Nope, not as long as it's bare concrete. Sealers and paints may interfere with adhesion. Some people use a liquid bonding agent, but just read the manufacturer's instructions on the bag of thinset to verify.
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