RE: Fuel proofing link ??
First, coat the wood with CA glue or epoxy resin and then use a completely fuel proof paint such as PPG K-36 PRIMA (polyurethane primer) .
Sand lightly with 220 grit, and then brush two coats on the wood, and one coat on the fiberglass and glue joints.
(Catalyze the K-36 with K-201 and do not use any reducer).
Drill a couple of small holes on the bottom of the model to allow any accumulated fuel or oil to drain out between flying sessions.
Harley Condra
BVM REP
JetCat REP
.