Interesting work Will and sorry you have to through this. I dread the day it
happens
to me and I have to go through this too.
But your research will certainly help. I would really like to use composites, if
possible, since it would allow any of us to be able to construct a tank to our
liking. But I understand the concern. It's a scary thought that the surface
could be affected.
After quite a bit of reading I honestly can't conclude whether it would be 100%
safe to have a composite tank exposed to ethanol. The MAX GRE option looks
promising
as I read that a Novolac based epoxy is a good choice.
But underground tanks are made from polyester resin and fiberglass but couldn't
find any specific resin spec.
Tough choice. Let us know how it goes.
Best,
Chris
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