This P 40 was painted with Latex using a Badger airbrush. The paint mix was 10 parts paint, 2 parts Floetrol, 3 parts water. Latex is not fuel proof. Varathanes are not 100% fuel proof, they also will "Yellow" over time. Very noticeable over light colored surfaces. The clear coat on the P40 is automotive 2 part polyurethane gloss clear. Completely fuel proof. A compatible "flatting" agent was added to the clear to remove the gloss.
Ed S