Epoxy vs. polyaspartic garage floors
The two coatings most installers offer, and how to choose between them.
| Epoxy | Polyaspartic | |
|---|---|---|
| Cure time | Typically a few days before parking | Often walkable in hours; many installs finish in one day |
| Sunlight (UV) | Can yellow ("amber") in direct sun unless top-coated | UV-stable, holds color outdoors and in sunny garages |
| Best for | Interior floors, base coats, metallic designs | Garages that get sun, patios, pool decks, fast installs |
| Common pairing | Many installers use an epoxy or polyaspartic base, broadcast flake, then a polyaspartic topcoat. | |
What matters more than the coating
Surface prep. Most coating failures come from poor preparation. Ask whether the installer diamond-grinds or shot-blasts the slab rather than acid-etching it.
Heat and hot tires. In hot climates, hot tires can lift weaker coatings. Ask whether the warranty covers hot-tire pickup and peeling.
Moisture. Concrete can push moisture up through the slab. Good installers test for it and use a moisture-tolerant primer when needed.
The warranty in writing. "Lifetime" can mean very different things. Ask what's covered, who backs it (installer or manufacturer) and whether it transfers if you sell your home.