In Reply to: Paint & Decal Question posted by Mike on May 04, 2018 at 07:43:37:
A black car sitting in the sun can easily have higher surface temperature than a tractor engine. Standard automotive primers and paints should be perfectly ok on a tractor engine. I have not noticed any difference in the paint finish on my tractors, and I don't use any paint additives. The engine surface just doesn't get that hot.
Underhood temperatures for a car will get much hotter than for an exposed tractor engine. Automotive engine coatings are usually advertised for around 500 degrees.
High temp coatings advertised for up to 1500 degrees should be sufficient for things like exhaust manifolds, but I have not found ANY rattle can or brush on coating that does not immediately fail when the tractor is worked hard. Ceramic coating may be the only long-term solution for an exhaust manifold (and the first foot or so of exhaust pipe), but ceramic coating is too expensive for my budget.