Charlie England wrote:

Lou Parker wrote:
I'm at the point where I need to build a gas tank or 2. The sport
plane builder book shows a great way to do a custom tank but materials
it calls for are not listed (or I'm reading it wrong) so, any
recommondations on a foam core that will stand up to gas? Any
recommondations for a fiberglass system? I'm all ears, or in this case
eyes.
Lou
If it's a relatively simple shape & you aren't just addicted to resin
fumes, aluminum works great & stands up to just about any fuel. If you
don't have access to a bending brake, most sheet metal shops can do the
bends for you. If flanges are external to the tank volume, you can seal
the joints with 'proseal' & rivet it with 'pulled' rivets.

Charlie

Gotta agree with Charlie on this one.
Aluminum is way mo betta.

I haven't tried this myself (no guts?) but one of my builders
reported good results using a novel technique.

Flange the end pieces, and make a wrapper skin.
Etch both using the green stuff (phosphate etch from Home Depot?)
Prime with something like Epibond.
Then assemble using PL-1 urethane adhesive (i believe) and pop rivet
the tank together.

Hey, that's why the cal it experimental!

Richard