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This one may interest some of us.
------ Forwarded Message
From: al p wick <alwick@juno.com>
Date: Wed, 9 Mar 2005 22:44:45 -0800
To: Cozy_Builders@mailman.qth.net
Subject: Re: COZY: fuel tank sealant???
Since I planned on using auto gas from day 1, I put pieces of epoxy and
other fuel tank components in Mason jar. I then regularly replaced the
fuel in the jar with auto fuel. None of fuel tank components were
affected. 6 years later my plane was complete and the mason jar
components good as new. So I have operated for years using auto fuel
which often has ethanol and other undesirables. Others have done same
tests, same results.
However, I did install one of my fuel caps with the 50/50 epoxy you are
not supposed to use. It started getting mushy, so I removed it and used
20/80 epoxy. Happy as a clam.
-al wick
Artificial intelligence in cockpit, Cozy IV powered by stock Subaru 2.5
N9032U 200+ hours on engine/airframe from Portland, Oregon
Prop construct, Subaru install, Risk assessment, Glass panel design info:
http://www.maddyhome.com/canardpages/pages/alwick/index.html
On Wed, 09 Mar 2005 21:54:01 -0600 Jim Sower <canarder@frontiernet.net>
writes:
I've heard that Autogas can be destructive to epoxy (I know alcohol
is bad, but have heard rumors to the effect that even without alcohol,
some epoxys are vulnerable). I've further heard that Jeffcoat (sp?) is
NOT subject to damage from autogas. The "mogas damages epoxy" statement
was not accompanied by any reliable documentation or compelling
evidence. The Jeffcoat statement seems to have been based on anecdotal
evidence.
Does anybody have solid information around this? ... Jim S.
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