
The Epoxy Garage Floor Process From First Look to Parking Day
An epoxy garage floor job starts with a walk of the slab: cracks, joints, old paint, drains and how water leaves the room. Then comes grinding, repairs, moisture testing, the base coat, any flake or quartz broadcast and the topcoat. We give you the walk-on and drive-on times before we begin.
Diamond Grinding a Garage Slab Open
A coating laid over sealed, painted or smooth troweled concrete has nothing to grip and lets go in sheets. We grind the slab to an ICRI concrete surface profile that matches the system, usually a CSP 2 or 3 for a garage coating, and vacuum the dust as we go.
Moisture Testing Under an Attached Garage
Wisconsin’s dwelling code requires a vapor retarder under a home’s floor slab but not under the slab of an unconditioned attached garage, under SPS 322.38. That means many garage slabs have no sheet beneath them, so we test before we coat and pick a primer to match the reading.
What the Dwelling Code Asks of a Garage Floor
SPS 321.203 sets the garage floor itself: noncombustible, impermeable to petroleum, at least 4 inches thick on granular fill and sloped to the door or a floor drain. Its own note says it does not require sealing the concrete, so a coating is your choice, and we treat it as protection rather than compliance.
Reading the Cracks Before a Garage Coating
Hairline shrinkage cracks are normal and we fill them before coating. A crack that has opened wide, shifted in height or keeps growing tells us the slab is still moving, and a coating will follow it. When we see that, we say the slab needs repair or replacement before we quote a finish.
Road Salt, Calcium Chloride and Bare Concrete
Rock salt and calcium chloride deicers ride in on tires and sit in puddles on the floor all winter. On bare concrete that brine works into the surface and scales it. A sealed, coated floor keeps the salt on top where it can be squeegeed out to the drain.
Coating a Garage in a Kenosha Winter
Epoxy needs a warm enough slab to cure, and Kenosha’s lakeshore and inland stations average more than 120 freezing nights a year. A heated garage can be coated in January. An unheated one often cannot, and we would rather tell you to wait for spring than install a floor that never cures right.
Hot Tire Pickup and Topcoat Choice
A tire coming off a warm highway softens some coatings and pulls them off the floor when the car parks. Thin, low-solids finishes are the usual victims. We use 100% solids epoxy bases and polyaspartic or polyurea topcoats that hold up under a hot tire.
Store-Bought Epoxy Kits Versus a Professional Floor
A store-bought epoxy kit is mostly a thin water-based coating applied over acid-etched concrete. A professional floor starts with grinding, uses higher-solids materials at a measured thickness and is built in layers. The difference shows up the first winter, when salt and hot tires find the weak spots.
What Moves the Price of an Epoxy Garage Floor
The size of the garage matters less than its condition. Old coatings to remove, crack and joint repair, moisture that calls for a mitigation primer, flake density and topcoat choice are what move the number. We quote after seeing the slab, with each item named.
Coating Warranty Exclusions, Moisture First
Almost every coating warranty excludes failure caused by moisture vapor coming up through the slab. We read the exclusions out before the job is sold, moisture first, so you know what is covered and why we test before we coat.