I used this on a set of reproduction Fenton cast iron headers for my 230 flathead and it looked as good the day I sold it as it did the day I painted them. This was about a 6 year period. Used the brush on version in the Cast Iron color.
KBS Coatings

In fact I used an entire KBS kit to do paint my engine and it held up great. Will use it again the next time I have to paint an engine.