Just wondering as I’m about to complete a one-design Viking and restore my dad’s FAI circa 1964- would a catalyzed acrylic automotive finish (well thinned of course) be suitable for a fuselage finish? Would it be relatively fuel proof? -j
I used catalyzed acrylic urethanes (Automotive clear coats) in the eighties as a fuel proofer over laquer on R/C power boats. water clear, flows out great and very fuel proof even with high nitro. They are usually pretty thin as mixed, but must be used with a respirator as they are quite toxic. As for Fuller Plast, great stuff unless you live in California where it and almost anything useful has been banned!
I have had trouble with fuller plast. It doesn’t harden properly… remains sticky for …years. Gone back to epoxy because it is well more predictable.
Fuller Plast usually dries to the touch in fifteen minutes when mixed properly. Some times if the catalyst is old it may give you fits. I know that Fender guitars uses it as a first coat because of its sandability and then as a final clear coat.