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Sunday, November 23, 2014

Question

I have just faux painted my concrete floors. I used a Behr wet look sealer, but after curing for 24 hours when I slid furniture across the floor the paint peels. What can I do to prevent this?


Answer

If you painted on top of the seal, note that sealer #985 is sold as a clear top-coat, meaning that it is what covers the paint, not the other way around. Paint peeling off an undercoat of seal means poor adhesion. The paint should have been applied first.
If the seal was correctly used as a top-coat, there are several things that may have gone wrong. My best guess would be that the problem occurred because the finish was not truly dry and fully cured before you moved back onto it. The Behr website recommends under the heading Dry Time,
“Dries to touch in 1 hour. Longer dry time required in cooler temperatures and in higher humidity. Floors may be subjected to light foot traffic after 24 hours. Allow 72 hours before repositioning furniture or subjecting surface to heavy foot or automotive traffic. Park tires on corrugated cardboard for 14 days after applying product. Wait at least 30 days before cleaning with a mild, non-abrasive liquid detergent.”
72 hours is suggested before replacing furniture, and due to local conditions your floor may not have been ready stand up to the friction.
You may wish to look at the company website to see if anything else catches your eye in the area of surface preparation.
Lynn E. Krafft, ICAN/ATEX Associate Editor
lekrafft@juno.com