Compare · Denver, CO
Epoxy vs Polyaspartic in Denver, CO
Two systems, two failure modes, and one number that decides it: how long the floor can stay out of service.
| Factor | Option A | Option B |
|---|---|---|
| Cure speed | 12 to 24 hours before foot traffic | 4 to 6 hours in warm weather, next day normally |
| UV stability | Ambers in direct sun over years | Stays clear far longer |
| Cost per sq ft | $4 to $6 with a clear coat | $6 to $9 as a full-broadcast system |
| Best use | Garage, shop, interior slab | Topcoat over epoxy, or fast-return residential |
| Working time | Longer pot life, easier in heat | Short pot life, small batches |
| Denver note | Cool slabs and nights below 50 F slow the cure | Still wants a warm slab, but tolerates cooler starts |
What actually differs.
Both are resin coats over a prepared slab. Polyaspartic cures faster and resists UV better. Epoxy costs less per square foot and gives a longer working window for flake broadcasts and color work.
Why most Denver garages use both.
Epoxy base for the film build and the flake, polyaspartic clear on top. You get the lower material cost of epoxy and the UV and speed of polyaspartic where it matters, at the wear surface.
When polyaspartic alone makes sense.
Small residential jobs where the garage is the only parking and the floor has to come back the next day.