I'm currently trying epoxy #526n, its two part, available in black, approx $140/pint, requires two post application cures, 2hrs @200F, 2-16hrs @325F. they quote good chemical/temp resistant specs. It is tough stuff.

http://www.aremco.com/high-performance-epoxies/


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.