On Thu, 9 Apr 2009 18:14:12 -0700 (PDT),
wrote:

On Apr 5, 10:55 pm, "Roger (K8RI)" wrote:

The Glasair manuals have an excellent series of drawings with detailed
instructions for the tanks, fuel lines, and the small tank with the
"flop tube" behind the firewall and they do use Vinylester Resin..

I have had good luck with a tank made up with 1/4" urethane stock. The
one I used is no longer around, but there are several in the Aircraft
Spruce catalog. I assembled the tank with epoxy then covered it
iinside and out with one layer of coarse glass and one layer of model
airplane fine glass. The inside corners were radiused with slurry and
covered with glass. It has held up for twenty years. and is not very
heavy.