With all due respect, saying you need an industrial epoxy is like saying you need flour to bake a cake. What you need is the correct seamless system for your application.
First, you may want to consider polishing. This is a 12 to 15 step mechanical process, which includes chemical hardening, an optional stain and a high speed burnished final polish sealer. This can range from $3 to $8 per sqft, depending on size and site conditions
Another option is a shop floor (poured slurry system). This system consists of a penetrating epoxy primer, a poured and self leveled epoxy blended with aggegates to not only give you build but also more impact resistance, then top coated with a high traffic polyurethane or polyasapartic sealer. Typical cost is from $5 to $8, again, size and site conditions dictate final cost
Of course you can always opt for painting on a couple coats of "industrial epoxy" but it wouldn't last long in a fork lift environment.