Marion Epoxy Flooring has spent more than 20 years on epoxy flooring in Coralville and the rest of our service area, and on this page we want to talk about one property most coating sales skip past: how a floor behaves when it is wet. A high-gloss finish photographs beautifully. Traction is something else, and it is decided by how the system is built, not by the resin name printed on the quote.
Our work starts at the concrete. Every slab is opened with a diamond grinder or a shot blaster rather than an acid etch, so the coating locks into a measurable surface profile instead of a rinsed one. Before a price is final, a moisture test goes into the written scope, and cracks, spalls and old coatings are mapped so we can tell you plainly when a slab needs repair or replacement before it should be coated.
The proposal you receive names the product line, the number of coats and the finished thickness, which lets you check the floor against the paperwork after we leave. Where grip matters, the texture is a line item too: we specify it by the broadcast and the topcoat we will use, so it can be checked like everything else.
A Westcor Drive dealership where bikes roll in under their own power
The clearest example of the traction question in Coralville sits at 120 Westcor Drive. The two-story Harley-Davidson dealership there was built with an on-site motorcycle and trike dyno, a large lounge and a Harley Owners Group meeting room. It sold to Junge Automotive Group in a deal that closed October 16, 2025, and reopened under the name Junge Iowa City Harley-Davidson. Trade coverage of the sale put the building at 46,283 square feet, with an expansive showroom, a drive-in service center and climate-controlled storage.
What a drive-in service center means for a floor
A drive-in service center is exactly what it sounds like. Riders bring their motorcycles inside on their own wheels, and in a wet spring or a rainy fall those tires carry water across the threshold with them. Once inside, bikes are walked and pushed by technicians, and a rider steadying a machine at walking speed puts a boot down on whatever surface is there.
To be clear about our part in it: we have never worked for the dealership, its owners or Harley-Davidson, and we have not seen what is installed on its floors. We use the building because it shows, at one address, a kind of room many Coralville businesses have in a smaller form: a floor where people and wheels share the same wet path.
Why the example travels
The same pattern turns up in any shop with an overhead door that stays open in bad weather, from a small engine repair bay to a detailing stall to a storage building customers drive into. The common thread is water arriving on wheels and feet, onto a floor that someone also has to stand on to work. That combination is what the rest of this page is about.
Looking for epoxy-flooring closer to Vinton? See Epoxy-Flooring in Vinton.
What Coralville’s building code and Iowa OSHA ask of a walking surface
Coralville adopted the 2024 International Building Code, with local amendments, effective October 31, 2025. Section 1003.4 of the 2024 text as published for Iowa is short: circulation paths of the means of egress “shall have a slip-resistant surface and be securely attached.” The section states no friction number and no test method, so it sets the expectation without telling anyone how to measure it.
For a workplace, Iowa OSHA adds a maintenance duty. Under 481 IAC 210.4, Iowa adopts the federal general industry rules, including 29 CFR 1910.22(a), which asks employers to keep the floor of each workroom clean and, to the extent feasible, dry, and to keep walking-working surfaces free of hazards such as leaks and spills. In a drive-in service lane, dry where feasible is a hard target, because every arriving tire undoes it for a while.
What that means for a coating decision
Neither rule hands a floor a pass, and no regulator signs off on a coating product by name. What the rules do is make wet traction a reasonable thing for an owner to ask about before a system is chosen. We answer that question with the texture we specify, and we tell you honestly that a textured floor still has to be cleaned and kept free of standing water to do its job.
Permits and the amendments we could not read
Coralville’s permit page requires a building permit for work that adds to, alters or reconstructs a structure, and it does not mention floor finishes either way. The city’s local amendments to the 2024 codes were not available for us to read, so we do not tell a Coralville owner whether a coating-only job needs a permit. That is a question for City of Coralville Community Development at 1512 7th St., and we would rather you ask it there than rely on a guess from us.
Wet tires, boots and gloss: showroom finish versus service-lane finish
A smooth, high-gloss coating looks clean and bright under showroom lights, and on a dry floor it can be perfectly comfortable to walk across. Put a film of rainwater on it and the same surface turns slick, because there is nothing for a tire tread or a boot sole to bite into. That is why a single building can reasonably carry two finishes: a smoother one where machines are displayed and nobody rides across, and a textured one where bikes roll in wet.
How texture is built into the system
Grip on a resinous floor comes from aggregate. During installation, a quartz aggregate broadcast is spread into the wet coat, the loose excess is removed after cure, and a topcoat locks the remaining texture in place. One resin maker’s sheet for a urethane cement screed describes the same idea: selected aggregate broadcast onto the wet screed to produce a surface texture with improved traction.
The grade of aggregate and the thickness of the topcoat decide how aggressive the finished texture feels. A heavier topcoat softens it and makes the floor easier to mop; a lighter one leaves more bite. We set that balance with you in the proposal, because it is a tradeoff between grip and cleaning effort, not a single correct answer.
Where gloss still belongs
Gloss is not the enemy. A display area, an office corridor or a parts counter that stays dry can take a smoother finish, and a 100% solids epoxy under a polyaspartic topcoat gives a durable, easy-cleaning surface there. The mistake is carrying that showroom finish into the service lane because the two rooms share a building, a door or a budget line.
The line between the two
Where a textured lane meets a smooth display floor, we plan the change so it is visible and the edge does not become a trip point. Placing it at a door, a column line or a painted boundary keeps the floor readable to someone walking it for the first time.
Home garages for Coralville riders: the same traction question
Plenty of Coralville motorcycle owners face a smaller version of the dealership problem at home. A bike ridden into an attached garage after a rainy commute brings water onto the slab, and the rider is putting a boot down on that slab in the last few feet. Coralville’s housing is mixed: 37.3 percent of units are detached houses and 44.1 percent of households rent, so many riders park in a shared or rented garage rather than one they own.
For an owned garage, a vinyl flake broadcast under a clear topcoat is a common choice, and it already carries some texture. Where a rider wants more grip in the parking lane, we can add a fine quartz aggregate to the topcoat in that zone while keeping the rest of the floor smoother for walking and cleaning. Renters should get the owner’s sign-off first, since Coralville’s Rental Housing Program inspects rental units against the city housing code and property maintenance code.
Prep, moisture and cure for a garage slab
About 39.7 percent of Coralville’s housing was built in 2000 or later, and a newer slab can still surprise us. We grind the garage before coating, check moisture as part of the written scope, and set the cure schedule by slab temperature and dew point rather than by a date on the calendar. In an unheated garage in winter, that sometimes means telling you to wait.
What a coating will and will not do
A garage coating gives a rider a cleaner, more readable surface and a texture that suits wet tires. It cannot hold back water coming up through a slab or reduce radon, and we put those limits in writing before the job is sold. Grinding dust is captured at the machine with a vacuum, so nothing gets rinsed toward a floor drain or the street.
If you ride in Coralville and want a floor that keeps its grip when the bike comes home wet, we will look at the slab, test it, and write a scope that names the system, the coats and the texture before any work begins.
- 20+ Years on Concrete
- Moisture Tested Before Pricing
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