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My garage floor epoxy job looked perfect for 3 months, then it started peeling in big chunks.
I prepped that concrete in Denver back in April, etched it twice and used a $200 Rust-Oleum kit. After about 90 days, the tires from parking my F-150 just delaminated entire sections. Everyone online swears by epoxy but I think the moisture in our slab was too high from spring thaw. Has anyone tried polyurea coating instead after a similar failure?
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jakejones25d ago
Did you actually test the moisture level in that slab before you laid down the epoxy? Even two etchings won't save you if you're fighting high relative humidity from a spring thaw, the concrete basically pushes the coating off from underneath. Your F-150 weight just sped up the inevitable, the epoxy wasn't bonded to the slab in the first place.
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the_harper25d ago
Man I've been there. You can do all the prep work in the world but if that slab's still sweating moisture from the ground up, the epoxy's just sitting on top of a wet sponge. I always tape a 2x2 foot sheet of plastic to the concrete for 24 hours before any coating job. If there's any condensation underneath, you're not ready yet. That truck just peeled back the evidence of a bad foundation.
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