Concrete can be a challenging surface to coat, but the continuous traffic of heavy (3,000- to 5,000-pound) vehicles, plus the friction from tire starts, stops and pivots on a garage floor calls for heavy-duty finishes. Add in the dirt, salt, leaks and spills, and we’re talking industrial finishes. But as with most finishes, it often comes down to the universal truth that a finish is only as good as the surface beneath. Translation: Spray, brush or roll, applying a coating over oil, dust, mold, grease or anything other than a squeaky-clean substrate, means the paint (or epoxy, in this case) is merely coating residue, not the actual surface. Nothing illustrates this better than a job we visited a couple of years ago. Continue reading →