Whatever you use, sealing the wood before painting is absolutely necessary
for long term survival, especially in humid climates. Shellac is my
choice. My experience with sanding sealers is that the car in the end looks
like a plastic or resin car; my use of wood is to avoid that specifically.
[I'm of the "only wood looks like wood" persuasion. Yeah, I know many
Atty Raymond G. Meyer
110 E. Main St
Port Washington, WI 53074