You can also, get the Techline coatings direct from TechlineCoatings.com. I've used many of the Techline coatings, and many of the industrial versions are the same coatings used by the big name coating companies. The surface prep and application are the key.
The problem with many coatings, is that they work well on mild steel, but since Stainless expands and contracts twice as much, most coatings do not hold up over time.
By far, the best coating for Stainless that I have found is from Calico Coatings, in Denver, NC (NASCAR country).
FWIW, good header wraps are more efficient than coatings, and less expensive.