There are different variations of this theme, with three- and four-stage specialty coatings, but the concept is the same. One of the paints from decades ago that's still in use is Imron, which is a Dupont brand name. Imron is extremely strong, and very toxic to use. It's commonly used on fleet vehicles and transport trucks, and holds up well on aircraft and race cars as well. However, it's expensive and not practical for a weekend warrior. Base/clear systems are much better suited to a hobbyist.