Spartan Epoxies HD Pro High Solids Garage Kit Review

Spartan sells the HD Pro system in per-car-count kits (1-car through 4-car, plus bulk/commercial sizes), each containing the two-part high-solids epoxy base coat, the mixing equipment needed to combine it, and application instructions. Chips, primer, and topcoat are sold as add-ons rather than bundled by default — check the listing for your size before assuming a topcoat is included, since that's a common point of confusion with this brand.

Spartan states 133–267 sq ft per gallon at 6–12 mils, which is a wide range because coverage drops fast as you push film thickness up. Their 3-car kit (this listing) is sized for roughly 400–600 sq ft depending on the mil thickness you target — measure your slab and don't assume "3-car" maps exactly to your garage; a 3-car garage with a raised storage area or an oddly shaped bay can easily run short. Buy for your actual square footage, not the label.

Mix at slow-to-medium speed for 2–3 minutes, scraping the sides and bottom of the pail so no unmixed resin or hardener hides in the corners — this is the single most common cause of soft spots or a floor that never fully cures. Pour a ribbon of mixed epoxy onto the prepped slab, roll it out with a 1/4in nap roller, and cut in edges with a brush where the roller can't reach. If you're broadcasting chips, do it while the epoxy is still wet, working in sections so you don't get ahead of your open time. Spartan's published cure schedule at 70°F: pot life 35–55 minutes, tack-free in 6–9 hours, recoat/topcoat window at 10–14 hours, light foot traffic at 12–16 hours, full cure in 2–7 days. Stay within 60–90°F and under 85% relative humidity during application and cure — outside that range, working time and cure both drift unpredictably.