Originally Posted by NewOrleansFlyer
Used to cover high powered rocket tubes with.....panty hose!
We used to build fiberglass wings for R/C airplanes that way. Cover the foam core with the one leg of a pair of panty hose then start applying resin. Seemed to work just fine. Never had a wing fail.
Another option is the way I did my chopper tank. I encased a steel tank inside of a foam and fiberglass shell. That way I never have to worry about leaks and I got a tank the shape I wanted. Just a suggestion.