Mount Prospect Epoxy Flooring has spent more than 20 years on epoxy-flooring in Warrenville and across the suburbs, and the floors that teach us the most are the ones that get dirty for a living. A room where people crush rock, heat binder and soak samples in warm water wears a coating out in ways a showroom never will. Those are the floors this page is about.
On a working floor like that, gloss is the wrong goal. What holds up is a hard, textured system that shrugs off grit, lets a drip of cooled binder be scraped off with a blade, and drains or wipes dry around a wet station without turning slick. Getting there starts with the slab, not the color chart.
So we start at the concrete. Every floor we coat is opened with a diamond grinder or a shot blaster, never an acid etch, and every proposal we write names the product line, the number of coats and the finished thickness. The person who signs it can walk the finished floor with the quote in hand and check it.
A Road-Materials Lab on Butterfield Road
What Chicago Testing Laboratory does
Warrenville is home to one of the region’s long-running materials labs. Chicago Testing Laboratory describes its work as testing and inspection of asphalt materials, liquids, aggregates, concrete and soils, along with geotechnical consulting and construction inspection. The company was founded in 1912 as the Chicago Paving Laboratory by Lester Kirschbraun, and it also runs operations in Indianapolis, McHenry and Elk Grove Village.
Its central laboratory is the Warrenville one. In 2010 the company opened the current lab at 30W114 Butterfield Road, nearly 7,500 square feet of laboratory and office space, which it describes as an AMRL, CCRL and IDOT accredited facility. Those accreditations belong to the lab; the 1912 date belongs to the company, not to the building.
What we know and what we do not
The equipment the company names includes a Hamburg wheel-tracking device, I-FIT, Micro Deval and an autoextractor. That list tells us a great deal about what a materials-testing room has to survive. It tells us nothing about that particular floor, and we have never been inside.
We are not the lab’s contractor and make no claim about its rooms, its layout or its coatings. We use it here because it is the clearest picture of the kind of work Warrenville does, and because anyone running a similar test room, sample-prep area or quality-control space in town faces the same floor problems.
Looking for epoxy-flooring closer to Burr Ridge? See Epoxy-Flooring in Burr Ridge.
Grit, Binder and Water at the Test Stations
Crushed stone underfoot
Aggregate testing means handling crushed stone, sand and fines all day. Samples are split, sieved, washed and weighed, and some of that grit always ends up on the floor, where every boot and cart wheel grinds it into whatever finish is there. A smooth, thin coating loses that fight quickly, first as dull traffic paths and then as worn-through patches in front of the busiest benches.
For grit, thickness and hardness do the work. A 100% solids epoxy body coat with a quartz aggregate broadcast locked under a tough topcoat gives the abrasive something hard to roll across instead of something soft to cut into. Quartz broadcast also gives the floor a texture that stays put when it is dusty, which matters more in a stone room than how the floor looks on day one.
There is a trade-off in how coarse to go. A heavy broadcast holds its grip under dust but traps fines that a broom leaves behind, while a finer texture sweeps and mops cleaner. We set the grade by how the room is actually cleaned, and we write that choice into the proposal so it is not a surprise the first time someone mops.
Hot binder and the scraper test
Asphalt binder is heated to be worked, and in any room where hot mix or binder is handled, drips happen. A blob of binder that cools on a coated floor is usually removed with a scraper, and the floor has to take that blade without gouging or peeling. A soft or poorly bonded coating comes up with the binder.
We plan a binder area around that scrape. A hard topcoat chosen for chemical and abrasion resistance, often a polyaspartic or a high-build epoxy, sits over a slab ground to a real ICRI concrete surface profile so the bond does not let go when a blade catches an edge. Where heat and heavy cleaning are routine, urethane cement is the tougher option, and we say so in writing rather than selling a lighter system that will not last.
Warm water from wheel-tracking baths
The Hamburg wheel-tracking test, AASHTO T 324, runs asphalt specimens submerged in a temperature-controlled water bath set between 25 and 70 degrees Celsius, or 77 to 158 degrees Fahrenheit. Filling, draining and wiping down a bath like that puts warm water on the floor around the machine, and warm water is harder on a weak coating than cold.
Around a wet station, grip and edges matter most. We broadcast for slip resistance in the zone where water lands and bring the coating to a firm termination at walls and equipment pads, so water cannot creep under a feathered edge. Solvent extraction of asphalt mixtures, by contrast, runs inside sealed automatic extractors that recycle most of the solvent, so we plan for incidental contact around those units rather than open pools of solvent on the floor.
Heavy Frames, Point Loads and Zoning the Floor
Where the weight sits
Test frames, compression machines and wheel-tracking devices are heavy, and they put their weight down on small feet or bolted bases. Carts and pallet jacks carrying sample buckets add rolling point loads across the same slab. A coating over cracked or spalled concrete will fail first right under those loads, because the concrete beneath it is already moving.
That is why we map cracks, spalls and old coatings before we price anything. Where a slab needs repair, we say so plainly, and where a section is too far gone to coat, we say that too. Anchor bolts and machine bases get their own detailing, and a coating is never asked to bridge a crack that is still active under a working frame.
Rolling loads shape the build as much as the frames do. Hard pallet jack and cart wheels carrying buckets of stone concentrate their weight on a small contact patch, and a thin coat chips at every joint they cross. In those lanes we build thicker, fill and level control joints where it makes sense, and choose a body coat rated for wheel loads rather than foot traffic.
One floor, several zones
A materials-testing room is really several floors sharing one slab. The aggregate area wants a thick, hard broadcast floor. The binder area wants a scrape-tolerant topcoat. The wet area around a water bath wants texture, drainage and tight edges, and the office corridor next door wants something easy to keep clean.
We draw those zones on the plan before work begins, with the system, coat count and thickness written for each one. Zone lines usually follow the equipment, so a finished area can go back into use while the next one is prepared. A moisture test is part of the scope before the price is final, using ASTM F2170 in-situ relative humidity probes or ASTM F1869 calcium chloride testing, because a slab under a busy wet station can carry more moisture than the rest of the room.
Working around a lab that keeps running
Testing schedules rarely stop for a floor. We phase work around shifts and book overnight and weekend windows when a building cannot shut down, sequencing zones in whatever order the operator’s deadlines call for. Grinding dust is collected by a vacuum at the machine instead of being swept or rinsed toward a floor drain.
The coating choice also sets how long each zone is out of service. A polyaspartic topcoat can let a zone take foot traffic the same day, while a thick epoxy body coat usually needs longer before a loaded cart rolls across it. We write the return-to-service time for each zone into the schedule, so the staff know which station they lose and for how long.
Before the job is sold, we explain what the coating warranty excludes, starting with moisture. A floor that is asked to sit under a leaking bath or an unrepaired crack is covered for what a coating can do, and the proposal says where that line is.
Other Lab and Test Floors in Warrenville
The corridor north of I-88
Warrenville is a far west suburb of Chicago on the DuPage River, part of the Illinois Technology and Research Corridor and just north of I-88. Along Butterfield Road and the business parks near it, the same floor problems turn up in smaller rooms: sample-prep areas, QA benches, equipment rooms and light shop space where something abrasive, hot or wet lands on concrete every day.
Those rooms rarely need the full system a large test lab would. A grit-heavy back room may need only a densified and sealed slab with lithium silicate, while a small wet bench may need a broadcast epoxy pad and a coved edge. We size the system to what actually spills, rather than to the largest room in town.
Permits and the fire district
The City of Warrenville Community Development Department lists flooring among the work that does not need a building permit, but we still ask before booking rather than assume. For commercial and industrial buildings, the Warrenville Fire Protection District reviews and approves non-single-family building and occupancy permits, and its plan review examines drawings within seven business days, so any work tied to a wider renovation is scheduled with that in mind.
Illinois has no state flooring license, so we check the city’s own registration, bond and insurance requirements before a Warrenville job goes on the calendar. The products we use are selected inside the Illinois VOC limits for floor and industrial coatings under 35 Ill. Adm. Code Part 223, which bind whoever applies them.
Starting the conversation
If you run a test room, a sample-prep area or a working shop floor in Warrenville, the first visit is a walk of the slab with you. We look at where grit collects, where water lands and where the heaviest frames sit, then come back with a written proposal that names each zone, its system and its thickness. You will know what the floor is meant to handle before any grinder is switched on.
- 20+ Years on Concrete
- Moisture Tested Before Pricing
- Written Itemized Proposals
