You are standing in your garage looking at a coating that is lifting off the slab in sheets. It looked great last spring. One Colorado summer later, there is a patch by the door the shape of a tire, and an edge you can get a fingernail under.
Here is the part that stings: the coating is almost never the reason. Three things cause this, and in Colorado Springs they show up in a predictable order.
Cause 1: the slab was etched instead of ground
This is the big one. It causes more failed garage floors than everything else combined.
Concrete has to be opened up before a coating will hold. Done right, that means a diamond grinder taking the top layer off the slab, leaving a surface with enough profile for the coating to key into. It is loud, dusty work that needs real equipment and a dust collection system, and it takes hours.
The shortcut is acid etching. You pour an acid wash across the floor, rinse it off, and call it prep. It is fast, it is cheap, and it does not open the concrete anywhere close to enough. A coating over an etched slab is sitting on the surface with very little to grip.
It will hold for a while. Then a Colorado summer arrives, a hot tire grabs it, and it comes up in one piece.
If your floor is peeling in large clean sheets and the underside of the peeled piece looks smooth, that is what happened.
Cause 2: the coating was too thin for hot tires
Hot-tire pickup is its own failure, and it is brutal in a climate with 240-plus sunny days.
You drive home in July. Your tires are hot and soft. You park, the rubber sits against the coating for hours, and as it cools it grips. Back out the next morning and the tire takes a piece of the floor with it.
Thin coatings lose that fight. A one-part epoxy paint out of a hardware store kit goes on at a fraction of the thickness of a professional build, and a kit rarely includes a topcoat with any real resistance to it. The failure shows up as patches the size and shape of where you park, which is the giveaway.
A professional floor beats this with build and with chemistry: a pigmented epoxy base coat for thickness, full decorative flake, and a clear polyaspartic topcoat that resists hot-tire pickup by design.
Cause 3: moisture coming up through the slab, untested
This is the one nobody checks, and it is the one that ruins a floor that was otherwise installed well.
Concrete sits on ground. Ground holds water. Unless a vapor barrier was installed under the slab and is intact, water vapor moves up through the concrete and pushes against whatever is on top of it. Older Colorado Springs garages and basements are the usual suspects, along with any slab where the grade slopes toward the house.
Coat over a slab with a live vapor drive and the coating comes off from underneath. Nothing was wrong with the product. It was never given a chance to stay stuck.
The test is not complicated. A calcium chloride test or a relative humidity probe tells you what the slab is doing before anything goes down. It should be on every quote for an interior floor. It rarely is.
What Colorado adds to all three
Mag chloride is the accelerant here.
All winter it comes off the road on your tires and drips onto the slab. On bare or failing concrete it works into the pores and holds moisture against the surface, which feeds cause three and undercuts whatever coating is left. Then the freeze-thaw cycle runs more than a hundred times a year and opens the concrete a little more each pass.
That is why a garage floor here fails faster than the same floor in a milder climate, and why the prep that was good enough somewhere else is not good enough in Colorado Springs.
Can a peeling floor be recoated, or does it have to come off?
Depends on how much of it is still bonded, and you find that out by testing, not by looking.
If the failure is confined to one area and the rest of the floor passes an adhesion check, the damaged section can sometimes be cut out, feathered, and rebuilt. The repair will be visible under a solid color. Under full flake it usually disappears.
If the coating is lifting in more than one place, or it comes up easily when you score and pull it, the floor is telling you the bond failed across the slab. Patching that buys a season. The honest answer is removal: grind the old coating off, treat the slab properly, and build it back in layers.
We will tell you which one you are looking at, and we will tell you when it is the second one even though the first one sounds better.
How a redo runs
- Test. Adhesion on the existing coating, and moisture in the slab. This decides everything after it.
- Remove. Grind the failed coating off the concrete.
- Repair. Fill cracks, pits, and any spalling, then grind the repairs flush.
- Rebuild. Pigmented epoxy base, full-broadcast flake, clear polyaspartic topcoat.
- Cure. Walk on it the next morning, park on it in about 48 hours.
Most two-car garages go start to finish in a day.
See what is included on our epoxy garage floor coating in Colorado Springs page. If the slab underneath has real structural damage rather than a coating problem, that is a concrete resurfacing conversation, and the freeze-thaw damage post covers how it gets that way.
FAQ
Can I patch just the part that peeled?
Sometimes, and only after an adhesion test on the rest of the floor. If the surrounding coating is solidly bonded, the failed section can be cut out and rebuilt. If the bond has gone across the slab, a patch is covering a problem that will keep spreading. We check before we recommend either one.
How do I know if my slab was ground or just etched?
Look at the back of a piece that has peeled. If the underside is smooth and glassy, the concrete underneath was never opened properly. A ground slab leaves texture on the back of the coating and often pulls small bits of concrete with it, which means the bond was stronger than the concrete itself. That is what you want to see.
Is it worth redoing, or should I leave bare concrete?
Bare concrete in a Colorado garage takes mag chloride, snowmelt, and freeze-thaw with nothing in between. It pits, it dusts, and it develops a white haze that will not sweep up. A properly built floor stops all of that at the surface. The question is not whether to protect the slab, it is whether the prep gets done right this time.
My floor is peeling and it is still under warranty. What do I do?
Call the original installer first and put the claim in writing. Keep photos of the underside of a peeled piece, because that is the evidence of how the slab was prepared. If you want a second opinion on what caused it before you make the call, we will come look and tell you what we see.
How long should a garage floor coating last in Colorado?
With the slab ground, tested, repaired, and coated in layers, 10 to 15 years of daily parking. The number is set by the preparation, not by the brand on the bucket.
Looking at a floor that did not last? Elite Concrete Coatings grinds, tests, repairs, and rebuilds garage floors across Colorado Springs and the Front Range. Call 719-639-0643 or request a free estimate, and we will tell you what went wrong before we quote the fix.