----- Original Message -----
Sent: Saturday, January 21, 2006 7:32
PM
Subject: [FlyRotary] Re: Auto fuel
Another epoxy to consider is Jeffco 9700.
This is the fuel tank coating reccomended by Velocity. The Jeffco is
designed as a fuel tank coating and does not require post cure heating as the
Pro-Set combination requires. According to the Pro-Set web site the 145
/ 226 combination requires post cure heating; " Post-cure heat -- 110°F to 180°F (43°C to 82°C) will accelerate the
cure and improve the physical properties of the cured epoxy, and is
required with 145 Resin mixtures to reach an acceptable degree of
cure.
Joe
I have not done any post cure yet, the guy on the
phone said that if I was a year away from flying that a post cure probably
would not be resquired but putting the plane out in the sun with some black
plastic over the strakes would heat it enough to do a post cure.
Wendell
----- Original Message -----
Sent: Saturday, January 21, 2006 8:43
AM
Subject: [FlyRotary] Re: Auto
fuel
Way to be thorough Wendell! I encourage the mason jar test too, just to
make sure.
I'm building with epoxy and was using West
Systems because the boat people recommend it for fuel tanks. Out of
curiosity, I e-mailed West Systems questioning the use of their epoxy with
fuel with alcohol. They did not e-mail back but quickly phoned to
tell me that it would not hold up to alcohol and
suggested using Pro-Set 145 resin with Pro-Set
226 hardener. I used this as a coating on the Cozy tanks and also
to bond the top skins onto the tanks.
Wendell
----- Original Message -----
Sent: Wednesday, January 18, 2006
10:29 AM
Subject: [FlyRotary] Re: Auto
fuel
Al,
Your statement below could lead some to
think that by adding more hardner to an epoxy mix that you could make it
more resistant to fuel. I don't think that is what you meant, you might
want to clarify it *and* provide the name/model of the epoxy that you
tested.
Bill Schertz
KIS Cruiser # 4045
-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