Showroom floor — beauty under brutal lighting

Showroom lighting is the unforgiving variable. Modern dealerships use 5000K LED grids that magnify every grind mark, every pinhole, and every roller line. This rules out most field-installed coatings and pushes the spec toward two systems: polished concrete (when the existing slab cooperates) or a designer metallic with a multi-coat aliphatic high-build topcoat (when the slab needs to be hidden).

Polished concrete delivers the cleanest, most modern look at the lowest long-term cost. The trade-off is that what you see is what you get — patches, color variation, and saw cuts are all part of the finished floor. For brands that want a controlled, uniform look (luxury German brands especially), metallic with a UV-stable high-build clear is the better path.

Service bay — the workhorse zone

Service bays need a floor that handles dropped wrenches, hot tires, hydraulic fluid spills, and constant point loading from rolling jack stands. Polyaspartic chip is the right answer 90% of the time — full color flake broadcast for slip and abrasion resistance, double clear coat for chemical and oil tolerance, and integral cove base where wash-down occurs.

Where the service bay handles aggressive chemicals (paint shops, body shops, alignment racks with hydraulic fluid leakage), step up to a polyurea or aliphatic polyurethane high-build system with the same broadcast. The cost premium is roughly 30%, the lifespan premium is roughly 2x.

Detail bay — water everywhere, all the time

Detail bays are essentially commercial kitchens with citrus solvents instead of citric acid. The floor sees constant water, weekly degreasers, and daily citric or solvent-based wheel cleaners. Urethane cement is the right specification for the same reason it's right for kitchens — thermal stability, chemical resistance, and steam-clean compatibility.

Slope-to-drain at 1/4" per foot, integral cove base, and trench drain integration are mandatory. A flat detail bay floor with caulked drain joints is a callback waiting to happen.

Cost expectations for a typical SoCal dealership

On a typical 30,000 sq ft dealership with a 5,000 sq ft showroom, 20,000 sq ft of service bays, and 5,000 sq ft of detail/wash bays:

Phasing — how to install without closing the dealership

Most dealerships can't shut down. Phasing typically means installing one bay or one zone at a time during off-hours or extended weekends. Polyaspartic is the hero here — 24-hour return-to-service makes it possible to install a service bay Friday night and reopen Monday morning. Urethane cement and polished concrete require longer closure windows and need more careful scheduling around the dealership's service appointments.

Specify for the next refresh, not just this install

Dealership brand refresh cycles run 5–8 years. The floor systems we install today should comfortably outlast at least two refresh cycles, which means designing for 12–16 years of service. That's why the prep, the topcoat, and the maintenance plan matter as much as the resin choice — they're the difference between specifying once and re-specifying every brand refresh.