RE: COATING/PAINTING/BALSA/1/2A'S
Well, for military finishes I always use Humbrol or Testors enamels with an overcoat of clear polyurethane, flat or semi gloss. Unfortunately it yellows (gloss being the worst) and isn't as fuel proof as I would like it to be with 1/2A fuels. I have had great success in the past with the cheap enamels I mentioned earlier, but again, they aren't as nitro tolerant as I would like them to be.
BTW, thanks for the tip re the thin coat of spackle, I never thought of that. I have always used tissue, talc and nitrate dope, time consuming.
Luke.