In my experience, here is what I can tell you...In a dope / laquer product, dream on. Auto base coat, aint gonna happen. Enamel? forget it.

So... that leaves me reccomending KlassKote Epoxy 2 part paint.
 
Buy a half pint of the standard black part A, and another half pint of the part B satin hardner instead of the gloss part B, grab 1 qt of their reducer for thinning and cleanup duty,  and you are good to go.

I don't know about dipping it in 20% pure Nitro and letting it sit overnight exactly, but I know it's going to be head and shoulders more fuel proof than anything else on the market in a flat color with no clear top coat. I've used KlassKote colors with YS 20/20 when I ran 4strokes and it was fine for direct contact with raw fuel.

EricV

Hi Frank, If all else fails try adding corn starch to regular black dope! I did this many yaers ago and ended up with a  flat  color of my then choice! Try this on some piece of no account work first!

I wound up using Rustoleum Flat Black from an 8 ounce can.   Covers great.
Cheap at WalMart and it passed the exhaust residue test and fuel spill(15%) no sweat after a three week dry period. Doubt I'll ever run more nitro  than that in any of  my tether cars.

 Thanks to all who gave me input.

Not aerosol.