Lately I've had to use the stuff to work with some pre-made parts that
were made from epoxy. Aeropoxy. Stinky!
Epoxy is more viscose, so it doesn't wet out the cloth as well. It is
more toxic, especially some of the older formulas. And smells
horrible. And why did so many homebuilders get stuck using that crap?
Rutan. Those hot wired, foam core wings and other parts to be exact.
The type of foam that can be hotwired, dissolves when in contact with
vinyl ester or polyester resin. So they had to use epoxy. What they
should have done is figured out another way to cut the foam cores with
something like a wire saw, and used polyurethane foam and vinyl ester
resin. Plus, epoxy is expensive, and much more flameable. So it's use
in aircraft has so many negatives, it should never have been used.
Rutan really put one on us with the epoxy legacy.