Warehouse flooring is a total system, not just a coating. The concrete slab, control joints, and topping coat all have to work together to survive forklifts, pallet drops, and daily wet cleaning.
Bare polished concrete
Cheapest and lowest-maintenance. Densifier + polish resists dusting and is easy to clean. Doesn't resist chemical spills or forklift battery leaks, and doesn't hide slab defects.
Epoxy — thin-mil
8–15 mil roller-applied epoxy. Bright, cleanable, but wears through in high-traffic lanes within a few years. Best for aisles and secondary areas.
Epoxy — high-build
40–80 mil self-leveling or trowel-applied epoxy. Levels minor slab imperfections, handles heavy traffic, and can be tinted to any color. The workhorse for most warehouses.
Urethane cement
The most durable option: 3/16" to 1/4" trowelled urethane cement, effectively bulletproof to thermal shock, chemical attack, and impact. Common in food processing, cold storage, and heavy manufacturing.
Don't forget the joints
Control and construction joints are where warehouse floors fail first. A semi-rigid polyurea joint filler, installed flush, is what keeps wheels from chipping joint edges over time.