SteveJ wrote:

Well we all hear quite a bit about the evils and wonders of both
polyester and epoxy. But what about vinylester? Any one ever use
that? I'm curious because
I saw a vinylester/kevlar canoe prototype by Mad River Canoes that was
20 years old, light as a feather and showed hardly a scratch though it
had been dragged through gravel for years
SteveJ


well, in aircraft, Vinyl ester has become popular as a replacement
for polyester. One of the chief benefits is that vinyl ester is
not affected by the many solvents in auto gas. Polyester and many
epoxies will leach out in time and start leaking. That's considered
a bad thing, usually...

Richard