David,

I had responded to the epoxy / ethanol issue a couple years ago but I don’t know if my response actually got on the list, so here goes again.  I sent West Systems an e-mail to determine if the West System I was using for my Cozy strakes would hold up to ethanol and they not only replied, but actually called me to say that it was not and to use PROSET 145 resin with PROSET 226 hardner.  So that is what I used but as of yet have not put any fuel in the tanks so no actual experience.

Wendell

 

 

I am quite interested in finding out the best epoxy to use as I haven't built my tanks yet and plan on running auto-gas in my Cozy.

Sorry to hear about your troubles John.

David Moyer

--- On Sun, 4/5/09, John Slade <sladerj@sbcglobal.net> wrote: From: John Slade <sladerj@sbcglobal.net> Subject: [FlyRotary] MGS Epoxy and Ethanol To: "Rotary motors in aircraft" <flyrotary@lancaironline.net> Date: Sunday, April 5, 2009, 9:33 PM Just in case anyone is thinking that fuel tanks made with MGS epoxy will stand up to prolonged auto-gas / ethanol exposure, I'm here to tell you that they won't.   I'm in the process of removing and replacing the inner skins in both fuel tanks on my Cozy IV.   See http://forum.canardaviation.com/showthread.php?t=4594 for a detailed report and pictures. I'll post more pictures on my web site when the repair job is complete.   Chris Barber - we need to buy each other a beer :) John   -- Homepage:  http://www.flyrotary.com/ Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html