Side by side
| Factor | Epoxy coating system | One-part floor paint |
|---|---|---|
| Film thickness | 20-40 mils | 2-4 mils |
| How it cures | Chemical reaction, two parts | Solvent or water evaporates |
| Preparation required | Diamond grind to CSP 2-3 | Usually a clean and a rinse |
| Hot-tire resistance | Unaffected | Lifts, often in the first summer |
| Material cost | $8-$12/sq ft installed | About $1/sq ft DIY |
| Service life | 15-20+ years | 1-3 years |
| Chemical and oil resistance | High | Poor, softens and stains |
| Recoating | Scuff sand and topcoat | Strip everything and start again |
| Weekend achievable | No | Yes |
Gold marks the stronger option for that factor. A tie is shown in neutral text.
Choose a coating system when
You want the floor to still be there in ten years. Everything that makes a resin floor expensive, the grinding, the two-part chemistry, the film build, is what makes it last, and none of it can be substituted. If the budget only reaches paint, the better use of the money is usually grinding and densifying the bare slab, which stops dusting permanently for less than a coating and leaves you a properly prepared floor to coat later.
Floor paint is defensible when
The building is being sold or rented and the floor only needs to look tidy for a season, or the slab is in a condition that does not justify investment. Paint on a basement storage room floor that never sees a tire is a perfectly rational $200 decision. Paint in a working garage is money spent on something that will be peeling before the next winter is out.
What is sold as epoxy paint
The confusion is deliberate in a lot of retail marketing. Products labelled epoxy paint or epoxy-fortified are typically single-part latex with a small amount of epoxy resin added, and they behave like paint because they are paint. The test is simple: if it comes in one can and does not have a pot life measured in minutes, it is not a two-part epoxy, whatever the label says.
Not sure which applies to your slab?
The site visit includes a moisture reading and an honest look at the concrete, then a written fixed price. We will tell you when the cheaper option is the right one.