
What an Epoxy Garage Floor Job Involves
An epoxy garage floor job starts with a look at the slab, the cracks and any old coating, followed by moisture testing. Install day covers grinding, repairs, primer, base coat, broadcast and topcoat, and the cure window is set by slab temperature. You get a date to walk on the floor and a later date to park on it.
Diamond Grinding Before Any Garage Coating
A coating applied over sealed, painted or troweled-smooth concrete has nothing to grab, and it releases in sheets once hot tires and winter salt work at it. We diamond grind the slab open, remove the old film and vacuum the dust, so the primer soaks into sound concrete instead of bonding to a surface already failing.
Garage Slab Moisture and the Missing Vapor Retarder
The residential code exempts garage slabs from the vapor retarder required under living space, and Palatine’s own amendments leave that exemption in place. A newer garage can therefore sit directly on gravel with nothing stopping ground moisture, which is why we test with calcium chloride kits or in-situ relative humidity probes before quoting a system.
Reading the Cracks in Your Garage Floor
Hairline shrinkage cracks, settled sections and cracks with one side higher than the other each mean something different. We fill stable cracks with a rigid repair material and grind them flush, but we tell you plainly that a coating follows the slab under it, so a crack that keeps moving will show through any floor.
Calcium Chloride, Rock Salt and Bare Concrete
Deicing brine soaks into bare concrete, then freezes and expands in the pores, and over a few winters the surface scales and pops. A properly built garage coating keeps that brine on top where a squeegee can move it, which is often the first reason Palatine homeowners call us rather than appearance.
Winter Installs in Unheated Garages
Resin cures by chemistry, and chemistry slows in a cold slab. We measure slab temperature and the dew point spread at the surface before mixing, because coating a slab close to its dew point invites amine blush and poor adhesion. An unheated garage in January sometimes has to wait for spring, and we say so.
Hot Tire Pickup and Why Coatings Lift
A tire that has just come off the highway is hot and soft, and as it cools on the floor it grips the coating beneath it. Thin store-bought epoxies and paints peel under that grip. Full-thickness systems with a well-bonded base and a hard polyaspartic topcoat resist hot tire pickup far better.
Epoxy Garage Floor Kits Compared With Professional Systems
Most kits rely on acid etching and a thin water-based epoxy, and many fail in the tire tracks within a year or two. A professional system replaces the etch with mechanical grinding, uses 100% solids epoxy or polyaspartic at real thickness, and builds in crack repair, so the difference is the preparation rather than the color chips.
What an Epoxy Garage Floor Costs
Garage size sets the baseline, but the condition of the slab moves the number most. Removing an old coating, repairing cracks and spalls, adding a moisture-mitigation primer, and choosing full flake broadcast or a metallic finish each change the price, and every one appears as its own line on the proposal.
Garage Floor Warranty Exclusions
Nearly every coating warranty excludes failures caused by moisture rising through the slab, and many also exclude movement cracks and chemical spills left standing. We read those exclusions out before you sign, with moisture first, because the time to learn what is not covered is before the job is sold.