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Epoxy Floor Coating in Auburn Hills — A Comparison with Polyaspartic Systems
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Epoxy Floor Coating in Auburn Hills: The Answer
Two Auburn Hills garages show the two ways epoxy loses in Michigan. On Hillsdale Drive, a 400-square-foot floor had a failing epoxy coating worn through in the high-traffic areas, scarred with tire marks, and stained with oil that had penetrated the compromised surface — and beneath it, the center control joint had spalled badly from years of freeze-thaw cycling. On Chase Way, the concrete had never been coated at all, but years of rust staining, road salt residue, light pitting, and a moisture reading of 4% meant the wrong material choice would have failed just as fast. That is the pattern behind epoxy floor coating in Auburn Hills: whether the epoxy is already down and failing, or the slab is still bare, Michigan’s freeze-thaw climate and moisture conditions decide which system actually lasts — and epoxy is usually the one that loses that bet.
What We Actually Found in Auburn Hills
Among the Auburn Hills projects MotorCity has documented, one involved stripping a failed epoxy coating; another shows why moisture testing decides the outcome even when there’s nothing to remove.
Hillsdale Drive — 400 Sq Ft, Failed Epoxy and a Spalled Control Joint
At Hillsdale Drive, the existing epoxy coating had worn through in the high-traffic zones, with tire marks and scuff lines cut into the surface and oil stains that had soaked past the compromised film. Because polyurea-polyaspartic systems require a direct bond to the concrete substrate and won’t adhere over an existing coating, our crew diamond-ground the full 400 square feet to strip the epoxy completely, removing the embedded tire marks and oil staining along with it. Underneath, the center control joint had suffered severe spalling from freeze-thaw cycling — deep voids and fractured concrete running the length of the garage. The crew chased out the loose material, packed the joint with two-part mender and sand, and ground the repairs flush before applying a grey polyurea-polyaspartic base coat with Domino flake across the full floor and the interior entry step, finished with a polyaspartic topcoat carrying 16-grit traction additive.
Chase Way — 424 Sq Ft, Moisture Remediation on Bare Concrete
At Chase Way, there was no prior coating to remove, but the slab told its own story: rust staining, road salt residue, light pitting, and small cracks throughout, with a moisture reading of 4%. Our crew diamond-ground the full 424 square feet to open the surface, then flooded it with MR50 moisture remediation primer to protect the coating system from vapor transmission from below — a step epoxy manufacturers routinely warn against skipping, since trapped moisture is one of the most common causes of epoxy delamination. Mender compound filled the pitting and cracks, and once cured, the crew applied a grey polyurea-polyaspartic base coat with Mediterranean flake across the floor and both entry steps, sealed with a polyaspartic topcoat carrying 16-grit traction additive.
Both jobs came down to the same underlying issue: a Michigan slab under real moisture and freeze-thaw stress, where epoxy’s rigid, moisture-sensitive chemistry is a liability whether it’s already failed or hasn’t been applied yet.
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 available, including DIY kits | 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 Hillsdale Drive job needed a full epoxy removal across 400 square feet plus control-joint spalling repair. Our Chase Way job needed no coating removal, but moisture remediation and crack and pitting repair across 424 square feet added real scope beyond a straightforward grind-and-coat job.
What Moves the Price on an Auburn Hills Garage
- Removing a prior coating — our Hillsdale Drive project required full epoxy removal before any repair could begin.
- Moisture remediation — Chase Way needed a full MR50 moisture barrier application after testing showed a 4% moisture reading, a step skipped at the homeowner’s peril with epoxy.
- Structural repair — the spalled control joint at Hillsdale Drive was the most labor-intensive phase of that job, well beyond typical patch work.
| 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. Epoxy is cheaper on day one. But at Hillsdale Drive, that day-one savings ended in a full removal bill years later. And at Chase Way, the moisture reading that had to be treated before coating is exactly the condition that causes epoxy to bubble and delaminate down the road. Day-one savings and lifetime cost are not the same comparison.
Michigan Conditions
An Auburn Hills garage floor goes through freeze-thaw cycling every winter, road salt tracked in on tires and boots, and — as both Hillsdale Drive and Chase Way show — real moisture moving through the slab from below. Epoxy performs well in a climate-controlled interior industrial floor with no UV, no freeze-thaw, and no moisture vapor pushing up from the ground. An attached, unheated Auburn Hills garage is a different environment entirely, and it’s where the failures we document — a control joint spalled by freeze-thaw, a coating worn through and stained, a slab holding a 4% moisture reading — tend to show up regardless of how carefully the original installation was done.
FAQ
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. On our Hillsdale Drive project in Auburn Hills, a 400-square-foot garage needed the existing epoxy coating fully stripped and a spalled control joint rebuilt before any new coating could go down, which adds real cost beyond the base square-footage rate.
A typical 2-car garage in the Detroit metro runs 400–500 square feet. Professional epoxy costs $2,000–$3,500 installed; polyurea-polyaspartic runs $2,800–$5,000 — a difference of roughly $1,000–$1,500 on the same garage. Our Chase Way project in Auburn Hills, at 424 square feet, needed a full moisture barrier application plus crack and pitting repair before coating could begin — a larger scope than a straightforward job of the same size.
Epoxy is a rigid coating that’s vulnerable to moisture pushing up through the slab, and it can wear through and stain in high-traffic areas — exactly what we found at our Hillsdale Drive project in Auburn Hills, where the epoxy was worn through with embedded tire marks and oil staining before we removed it entirely. It’s also prone to delaminating over slabs with elevated moisture, the same condition our crew treated with a moisture barrier at Chase Way before coating. 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. It also tolerates the moisture conditions that undo epoxy: at our Chase Way project in Auburn Hills, our crew applied a full MR50 moisture barrier before coating a slab that tested at 4% moisture — a condition that would put a standard epoxy coating at risk of delamination. The trade-off is cost: polyaspartic runs $6–$12 per square foot installed against $4.50–$8.50 for epoxy, and it requires a trained crew rather than a DIY kit.
See the Full Installations
Both projects are documented in full, with before-and-after photos, on our Auburn Hills garage floor coating page — see the full Hillsdale Drive and Chase Way installations.
Compare Coatings in Nearby Cities
The same comparison, worked through with garages documented in neighbouring cities:
- Coating a garage floor in Rochester Hills: epoxy or polyaspartic?
- Coating a garage floor in Troy: 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 Auburn Hills 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]
