My homebuilt aircraft has a fiberglass tank which has held avgas reliably
for thirty years.

When I asked Kern Hendricks (System Three's chemist/founder) about building
a gasoline tank, he said "Don't do it." The aircraft tank was built back in
the bad old days when epoxy was deadly (and the builder died). Epoxy
formulations vary. Experiment. You might also consider building a tank and
then lining the inside with "sloshing compound."

I tried building a tank for my wife's tiller and gave up. I was trying to
mate pieces of steel with epoxy saturated fiberglass (to keep the mounting
holes and fittings) and whether the problem was at the interface or in the
pinholes thru the epoxy, I'm not sure.

Roger

http://home.earthlink.net/~derbyrm
"HotRod" wrote in message
...
Is it possible for me to make my own fibreglass tank to hold diesel? I've
heard of gas tanks being eaten from the inside out but I'm wondering if
diesel will do the same thing. This way I could utilize the most space
possible, instead of cramming a square box into an odd shaped hole.