This stuff looks like it has possibilities....
http://www.klasskote.com/product/KKA040
Klass Kote Epoxy Clear #40 is the side-A component of the Klass Kote Epoxy 2 part clear coat system. This clear coat part-A epoxy paint is a catalyzed epoxy clear coat, and requires equal parts [by volume] of the part-B component.
TEST 5 - Fuel Proofing
The chemicals typically used in the operation of engine-powered models are particularly harsh on paint. Oil, alcohol, and especially the nitro-paraffin’s (nitro methane, e.g.) will often break down paints almost immediately. Sometimes, so-called "fuel proof” paints (butyrate dope, for example) will resist these chemicals for a while, but eventually succumb. In some cases, the fuel causes the paint to become sticky; in other cases; the fuel buries under the paint and lifts it off the surface.
The test procedure here was to soak a towel in fuel and vigorously rub the paint. When no effect was noted on the paint using 5% nitro fuel, the fuel was allowed to sit for an hour on the paint and at its edge, and the test repeated. When the paint survived this test also, the same towel-rub test was made using straight 100% nitro methane. The paint was unaffected.
A further test was made out of curiosity to see if amyl nitrate, (used as an ignition improver in model diesel fuels, and known to be hard on some paints) would affect the paint but, as before, no breakdown was observed.
I ordered some, let's see how it holds up submerged in E10 gas.