Fiberglass a Wing: Producing a smooth surface

There are many ways to apply fiberglass cloth to a structure. The most common methods use either polyester or epoxy resin and catalysts. Some of the resins require unequal mix ratios, like 1 part epoxy to 2 parts hardener, which is difficult to measure accurately. I also dislike polyester resin because it really smells foul. For all these reasons, I now use Pacer Technology’s Z-Poxy Finishing Resin (#PT40). It is an equal-mix product that has...