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Epoxy Concrete Floor Coating in Troy — Comparison with Polyurea Coating
QUESTIONS? NEED A QUOTE?
Epoxy Concrete Floor Coating in Troy: The Answer
Two Troy garages show what happens when epoxy goes down as a DIY project. On Lyster Lane, a 334-square-foot slab carried a self-applied epoxy coating that had already failed — residue left behind, oil stains soaked through, two cracks running across the floor, and heavier pitting concentrated in the parking zone. On Trillium Drive, a 695-square-foot floor had a failed DIY epoxy kit that had lost adhesion and was peeling and worn across much of the slab, with oil staining, minor cracks and pitting, and a rusted drain cover to work around. Both had to be fully ground off before anything else could go down. That is the pattern behind epoxy concrete floor coating in Troy: it is cheap and available as a store-bought kit, but on Michigan concrete a self-applied epoxy coating tends to fail early, not late — and when it does, removal becomes part of the job before a longer-lasting system can be installed.
What We Actually Found in Troy
Among the Troy projects MotorCity has documented, two are full DIY-epoxy removals.
Lyster Lane — 334 Sq Ft of Failed Self-Applied Epoxy
At Lyster Lane, the existing coating was a self-applied epoxy job that had already failed by the time our crew arrived. Residue from the old epoxy remained across the surface, mixed with oil stains and general surface staining. Two cracks crossed the slab, and the vehicle parking zone showed heavier pitting than the rest of the floor. A raised platform along the back wall was also in scope, face and surface both. Because coating over a failed surface only bonds to the old material — not to the concrete underneath — our crew diamond-ground the full 334 square feet to remove the residue and clear the oil staining and contamination. Mender compound went into each crack to bring the repairs flush, and the heavier pitting in the parking zone got a broader treatment: MR-50 primer worked into the concrete from within rather than sitting on top of it. Once cured, the crew applied an MC-3.5 polyurea base coat by roller across all 334 square feet, cutting in along the platform base and up its face by hand, and broadcast Pecan flake continuously from the floor up the platform. A polyaspartic topcoat with traction additive finished the job.
Trillium Drive — 695 Sq Ft, Failed DIY Epoxy Kit
At Trillium Drive, the failure was a store-bought DIY epoxy kit covering 695 square feet. It had lost adhesion across much of the slab — peeling and worn in multiple spots — with oil staining and surface staining visible beneath and around the failing coating. Minor cracks and pitting ran across the floor, a heavily rusted drain cover sat in one corner, and two concrete steps, a landing, and a 15-linear-foot vertical lip were all part of the job. Our crew diamond-ground the full 695 square feet to strip the failed kit and open the concrete beneath, then worked mender compound into each crack and made targeted repairs to the pitted areas. The steps, landing, and lip were hand-abraded — grinding equipment can’t reach nosings and edges the way hand prep can. The crew then applied an MC-3.8 polyurea base coat across the full prepared slab, cutting in by hand on both steps, the landing, and the vertical lip, and broadcast Pebble Beach flake continuously across every surface in scope. A polyaspartic topcoat with 36-grit traction additive finished the floor, steps, landing, and lip as one continuous system.
Both jobs started as a homeowner’s own weekend project — and both ended with a full removal bill neither homeowner planned for when the epoxy kit first went down.
Epoxy or Polyurea-Polyaspartic, Side by Side
| Epoxy | Polyurea-Polyaspartic | |
|---|---|---|
| Upfront cost, installed | $4.50–$8.50/sq ft ($2,000–$3,500, 2-car garage) | $6–$12/sq ft ($2,800–$5,000, 2-car garage) |
| Cure / return-to-service time | Typically several days, longer in cold weather | As little as 24 hours |
| Flexibility under slab movement | Rigid — can crack or telegraph existing cracks | Flexible — moves with the slab |
| UV stability | Prone to yellowing and ambering with sun exposure | Formulated to resist UV yellowing |
| Moisture tolerance | Vulnerable to bubbling and adhesion loss from vapor | More tolerant, especially with a moisture barrier |
| Resistance to road salt | Can lose adhesion under repeated salt exposure | Built for Michigan freeze-thaw and salt exposure |
| Expected service life (SE Michigan) | 7–15 years professional; 1–3 years DIY kit | 15–20 years |
| Who can install it | Widely sold as a DIY kit — no crew required | Requires a trained crew — no DIY route |
For the chemistry behind these differences, see why polyurea-polyaspartic coatings outperform epoxy.
Cost
A firm price before we’ve inspected your slab would be misleading. What decides the number is the condition of what’s already on the concrete, not just the square footage. Our Lyster Lane job needed full removal of a self-applied epoxy coating across 334 square feet, plus crack repair and a broader pitting treatment in the parking zone. Our Trillium Drive job needed a failed DIY epoxy kit stripped from 695 square feet, plus crack and pitting repair and hand prep on two steps, a landing, and a vertical lip.
What Moves the Price on a Troy Garage
- Removing a prior coating — both our Lyster Lane and Trillium Drive projects required full removal of a failed DIY epoxy coating before repair could begin.
- Extra scope beyond the floor — the raised platform at Lyster Lane and the steps, landing, and vertical lip at Trillium Drive all needed the same hand prep and coating as the main slab.
- Targeted vs. broad pitting repair — Lyster Lane needed a wider MR-50 treatment across the whole parking zone, not just spot repairs.
| Item | Range |
|---|---|
| Professional epoxy, installed | $4.50–$8.50 per sq ft |
| Professional epoxy, typical 2-car garage | $2,000–$3,500 |
| Polyurea/polyaspartic, installed | $6–$12 per sq ft |
| Polyurea/polyaspartic, typical 2-car garage | $2,800–$5,000 |
| Difference between the two on the same garage | roughly $1,000–$1,500 |
| DIY epoxy kit, 2-car garage | $150–$650 |
| Removing a failed coating | $2–$4 per sq ft (roughly $800–$1,800 on a 2-car garage) |
| Service life, professional epoxy (SE Michigan) | 7–15 years |
| Service life, polyurea/polyaspartic (SE Michigan) | 15–20 years |
| Service life, DIY water-based kit | 1–3 years |
A “typical 2-car garage” runs 400–500 square feet. A DIY epoxy kit looks like the cheapest option on day one. But both Troy jobs above started as a homeowner’s own epoxy kit, and both ended with a removal bill that erased whatever the kit had saved. Day-one savings and lifetime cost are not the same comparison.
Michigan Conditions
A Troy garage floor goes through freeze-thaw cycling every winter, road salt tracked in on tires and boots, and daily vehicle traffic on top of it all. Troy’s housing stock ranges from established subdivisions with decades of that wear already on the slab to newer construction where the concrete is barely cured. DIY epoxy kits are formulated for controlled application and a forgiving cure window — not for a homeowner working around a Michigan winter, uneven moisture readings, or a slab that’s still moving. That gap between the product’s ideal conditions and an actual Troy garage is where the failures we document — residue left behind, oil soaking through a worn film, peeling that starts at the edges — tend to show up.
FAQ
DIY epoxy kits are sold for exactly that, and they run $150–$650 for a 2-car garage — a fraction of a professional installation. But on our Lyster Lane project in Troy, a self-applied epoxy coating had already failed by the time our crew arrived, leaving residue, oil staining, and pitting that had to be fully ground off before anything new could go down. In Michigan conditions, a DIY water-based kit typically lasts only 1–3 years versus 7–15 years for a professional epoxy job.
A 20×20 garage is 400 square feet, within the typical 2-car garage range. Professional epoxy runs $4.50–$8.50 per square foot installed, or roughly $2,000–$3,500 total — before accounting for what’s already on the slab. On our Trillium Drive project in Troy, a 695-square-foot garage needed a failed DIY epoxy kit fully stripped before any new coating could go down, which adds real cost beyond the base square-footage rate.
Epoxy is a rigid coating that loses adhesion as the slab moves and wears underneath it — exactly what we found at our Lyster Lane project in Troy, where a self-applied epoxy coating had failed across a 334-square-foot slab, leaving residue, oil stains, and cracks. It can also peel and lose its bond with age, as our crew found at our Trillium Drive project, where a failed DIY epoxy kit was peeling and worn across much of a 695-square-foot floor and had to be fully removed before a new system could bond. Professional epoxy installations in SE Michigan run 7–15 years; DIY kits typically last only 1–3 years.
For an unheated Detroit-metro garage, a polyurea-polyaspartic system rates highest for durability — 15–20 years in SE Michigan conditions versus 7–15 years for professional epoxy and just 1–3 years for a DIY kit. It also resists the peeling and cracking that undoes a self-applied epoxy job: at our Trillium Drive project in Troy, our crew ground off a failed DIY epoxy kit, repaired the cracks and pitting underneath, and finished with a polyurea base coat and polyaspartic topcoat across the floor, steps, landing, and vertical lip as one continuous system. The trade-off is cost: polyaspartic runs $6–$12 per square foot installed against $4.50–$8.50 for professional epoxy and $150–$650 for a DIY kit, and it requires a trained crew rather than a weekend project.
See the Full Installations
Both projects are documented in full, with before-and-after photos, on our Troy garage floor coating page — see the full Lyster Lane and Trillium Drive installations.
Compare Coatings in Nearby Cities
The same comparison, worked through with garages documented in neighbouring cities:
- Coating a garage floor in Clawson: epoxy or polyaspartic?
- Coating a garage floor in Rochester Hills: epoxy or polyaspartic?
For the metro-wide picture — cost ranges, service life, and how each material handles a Michigan winter — see epoxy garage floor coating compared with polyurea-polyaspartic across Metro Detroit.
Get a Quote for Your Troy Garage
Every price on this page is a market range, not a quote. What your project costs depends on what’s actually on your slab. Call 248-613-5888 for a free inspection and an accurate number.
MotorCity Floors and Coatings
46101 Grand River Ave, Novi, MI 48374
248-613-5888 · [email protected]
