How to Coat a Commercial Floor in Bloomington Without Closing the Business

September 9, 2026

From the Curry Pike plants to the Kirkwood kitchens, the floors that get coated on schedule are the ones whose moisture tests, prep profile and cure times were written down before the first pallet moved.

Bloomington's commercial floors

Bloomington's commercial concrete is a mix of eras and uses. Indiana University brings more than 47,000 students and a campus of labs, recreation buildings and dining halls. Cook Group, founded in 1963 and based at 750 Daniels Way on the west side, anchors a life-sciences and device-manufacturing corridor with 12,000 employees across its companies worldwide, and the former GE plant on Curry Pike is changing hands for new industrial use. Add the restaurant kitchens along the Kirkwood corridor, retail on the College Mall corridor, and the auto shops on Whitehall Pike and Vernal Pike, and most of the city's floors have one thing in common: they cannot close for a week.

The commercial epoxy flooring page lists the systems by room type. This post is about the sequence that lets a business keep operating while the floor changes.

Test before you schedule anything

The phasing plan starts with two numbers, not a calendar. ASTM F1869 measures moisture vapor emission in pounds per 1,000 square feet per 24 hours, and ASTM F2170 reads relative humidity inside the slab. A published resinous flooring guide specification caps them at 3 pounds and 75 percent and, for new concrete, requires 28 days of cure and 3,500 psi before any coating. A reading over the limit does not stop the job; it adds a moisture-mitigating primer and a day, and it is far better learned in a test week than on install night.

Bloomington's karst geology makes the test more than a formality. INDOT's own guidance describes the region's shallow groundwater and rapid subsurface drainage, and an older slab-on-grade off Vernal Pike with no vapor barrier can read high every spring, when April through June each bring more than 5.2 inches of rain.

Phasing a floor around operations

Most commercial floors are coated in sections, with temporary walls and taped lines, and the section size follows the cure times on the data sheet. Published polyaspartic sheets allow light foot traffic in 3 to 7 hours and full service in 24 to 48 hours, which is what makes a Friday-night-to-Monday-morning kitchen or a weekend retail floor possible. A 100 percent solids epoxy body coat with a recoat window of up to 24 hours stretches the same section to two nights, but gives a thicker floor for a warehouse aisle.

The other lever is hours. A gym near campus coats after the last class and before the first, a kitchen after closing on Sunday, a warehouse one aisle at a time with racking left in place. The scope should state the return-to-foot-traffic and return-to-forklift times for the exact products and the temperature the building will be held at, because both times lengthen when the space is cold.

Prep in an occupied building

Commercial specifications ask for a surface profile, not a cleaning. ICRI Technical Guideline 310.2R defines the CSP 1 to 10 scale, and published resinous flooring specs call for CSP 3 to 4 by shot blast or CSP 2 to 5 by mechanical means. In an occupied building that means shrouded grinders and shot blasters with HEPA extraction, and a plan for the dust line between the work zone and the customers. Old tile mastic, mill-era oil in the slab and paint from earlier tenants all come off in this step; the concrete grinding and surface prep page explains why nothing else bonds.

Odor is the other occupancy question. 100 percent solids epoxies carry no solvent, which is why they are the usual choice next to a dining room or a clinic, and a written scope should name the products so the building can plan ventilation.

Matching the system to the room

Bloomington's commercial floors ask for different things, and the scope should say which:

• Warehouse and distribution: high-build body coat, striped forklift lanes and impact tolerance, covered on the industrial epoxy flooring page
• Auto shops on Whitehall Pike: chemical resistance to oil, brake fluid and the brine that drips off every car from mid-November to mid-March
• Restaurant kitchens: broadcast slip aggregate, an integral cove base at the walls, and a seamless finish that passes inspection
• Gyms and recreation floors: a topcoat that cleans with a mop and tolerates dropped weights, with a matte or satin sheen
• Retail and showrooms: a UV-stable clear topcoat where the storefront glass lets sun reach the floor, often over a metallic or flake base
• Labs and device manufacturing: a smooth, cleanable, chemical-resistant surface with sealed joints, on a slab tested for moisture first

Winter scheduling and the salt line

A heated commercial building is one of the few places in Bloomington where a floor can be coated in January, when the outdoor slab-on-grade would be crossing the freeze line 26.1 nights a month. The building has to hold the slab inside the data sheet window, typically 50 to 85 degrees F and 5 degrees above the dew point, and entrances need a plan, because INDOT brine at 23.3 percent salt walks in on every boot and tire from mid-November to mid-March.

A coated entry vestibule sheds that brine instead of absorbing it, which is the practical reason commercial epoxy flooring in Bloomington and the surrounding towns so often starts at the door. Use the contact page to describe the space and its hours; a written scope with tests, prep profile, products, section plan and cure times is what a property manager should expect back.

More from the blog

• Coating an Auto Shop Floor in Bloomington: Oil, Brake Fluid and Winter Brine
• Fall Booking Guide: Why September and October Fill First in Bloomington
• New Concrete in Bloomington: the 28-Day Rule Before Epoxy