Spec by spec
| Epoxy | Polyaspartic | |
|---|---|---|
| Installed price / sq ft | $6–$9 | $7–$12 |
| Vehicles back on it | three to seven days | 24 to 48 hours |
| Sunlight | Ambers (yellows) over time | Stays clear |
| Build per coat | Thick, fills small flaws | Thinner per coat |
| Working time | Forgiving | Short — needs a practiced crew |
| Scratch and chemical resistance | Good | Very good as a topcoat |
Where epoxy wins
Epoxy is the workhorse. It goes on thick, levels out small dips, and bonds hard to properly ground concrete. Per square foot of film it is cheaper than polyaspartic, and its longer working time lets a crew do a big floor or a metallic pour without racing the resin. If the slab needs building up and the floor stays out of the sun, an all-epoxy system is a sound choice.
Where polyaspartic wins
Speed and sunlight. A polyaspartic coat cures in hours, so a garage can be back in use in 24 to 48 hours rather than three to seven days. It does not amber under UV, which matters for carports, open garages, and floors near glass. As a top layer it also takes scratches and shop fluids well.
The hybrid most garages end up with
- Primer — standard or moisture-tolerant, chosen by the moisture test.
- Epoxy base and flake — the body of the floor, where thickness is cheap.
- Polyaspartic clear topcoat — the wearing surface, where speed and UV stability pay off.
That build adds about $1 to $3 per square foot over an all-epoxy system — less than a full polyaspartic build — and gets most of the benefit.
Why New Orleans conditions lean toward a polyaspartic top
South Louisiana has a hot, humid climate, and humidity can matter twice for a coating: moisture in the slab, and condensation on a cool slab during application. Polyaspartic tolerates a wider application window, which helps on summer schedules, and a garage that spends its days with the door up gets real value from UV stability. Neither chemistry fixes moisture from below: Moisture in a slab can make a floor coating fail after it goes down, which is why coating makers generally require a moisture test first.
A short decision guide
Straight epoxy
Closed garage, little sun, budget first, and no rush to park on it.
Epoxy base, polyaspartic topcoat
The default for most garages: thickness where it is cheap, durability and color on top.
Full polyaspartic
You need the space back the next day, or the floor sits in strong sun.
Neither yet
The moisture test failed and the source has not been dealt with, or the slab is still moving.
Questions that separate a real quote from a guess
- What did the moisture test read, and which primer does that call for?
- Which coats are epoxy and which are polyaspartic, and how thick is each?
- When can I walk on it, and when can I park on it?
- Is the slab ground, or etched?
Prices for each option are in the New Orleans epoxy flooring cost guide.
Epoxy vs. polyaspartic questions
Is polyaspartic better than epoxy for a New Orleans garage?
As a topcoat, usually yes: it cures fast, holds its color in sun, and resists scratches well. As the whole system it is not always better — epoxy builds thickness for less. Many garages get an epoxy base with a polyaspartic topcoat.
Which one handles hot tires better?
Hot-tire pickup is mostly a bond and thickness problem. A properly ground slab and a full-thickness system resist it either way; a hard polyaspartic topcoat helps.
Will epoxy really yellow in my garage?
Standard epoxy ambers with ultraviolet exposure. A garage kept closed may barely show it; a carport or a garage that lives with the door open will.
Serving New Orleans and the surrounding metro, including Metairie, Kenner, Gretna, Marrero, Harvey, Chalmette, Slidell, Mandeville, Covington, and LaPlace.