Your epoxy floor is lifting at the edges, flaking in the tire paths, or peeling off in sheets. It's frustrating, but it's also diagnostic: peeling is an adhesion failure, and adhesion failures trace back to preparation. The good news is a properly redone floor will not do this.
Katy Floors Epoxy regularly strips and replaces failed coatings across Katy and Greater Houston. Most were installed by DIY kits or contractors who skipped the steps that matter. Here's why floors peel and how we fix them for good.
The Main Cause: No Mechanical Profile
Epoxy bonds to concrete by gripping into the microscopic texture of the surface. If the slab is too smooth, sealed, or contaminated, the coating has nothing to hold onto and eventually releases. The biggest culprit is acid etching, the prep method most kits recommend. Acid can't cut through oil, curing compounds, or old sealers, and on dense concrete it leaves the surface too smooth for a real bond. The coating looks fine for a while, then peels.
Other Common Causes
Contamination is a frequent offender: oil, grease, dust, or efflorescence left on the slab acts as a bond breaker. Moisture is another, driving coatings off from below as vapor pressure builds. Improper mixing or coating in the wrong temperature and humidity weakens the cure. And recoating over an old failing layer simply means the new coat peels along with the old. In our climate, skipping moisture testing compounds all of these.
You Can't Just Recoat Over It
The instinct is to scuff the peeling floor and roll on a fresh coat. That never lasts, because the new coating is only as well bonded as the failing layer beneath it. A lasting repair means removing the old coating entirely and starting from sound, properly profiled concrete.
How We Properly Redo a Failed Floor
First we diagnose the cause, including moisture testing, so the same failure doesn't repeat. Then we mechanically remove the old coating by diamond grinding or shot blasting down to clean, bare concrete. We repair cracks and any spalled areas, mitigate moisture with a primer if the slab calls for it, and then build a complete professional system, a high-solids epoxy basecoat, broadcast flake or quartz, and a UV-stable polyaspartic or urethane topcoat. The result is the floor you should have had the first time.
Why It Won't Happen Again
A floor installed over a properly ground, clean, moisture-managed slab develops a true mechanical bond that holds through years of Houston heat, humidity, and daily driving. The reason our floors don't peel is the same reason the old ones did: it all comes down to prep, and we don't skip it.
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Peeling or flaking floor? We'll diagnose it and rebuild it right.
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