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Date: Sun, 16 Sep 2007 15:07:13 -0700
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
From: Ken Welter <rotarycoot.ken@gmail.com>
Subject: [FlyRotary] Re: Fiberglass fuel tanks
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   Yes I have used the Dow 511-45 and also Hydrex 100 vinyl ester 
resins without any problems in over over 1400 hrs of using Mogas.
  Ken


>I'm not flying yet, but the resin system used in my aircraft is 
>impervious to ethanol.  I'm building a Glasair, and the resin system 
>is a Dow 411-45 vinyl-ester resin system.  The vinyl-esters were 
>originally designed for making fiberglass underground gas tanks. 
>All Glasairs have a integral gas tank in the forward part of the 
>wing.
>
>However, be cautious about using any vinyl-ester or polyester resin 
>system over epoxy.  It won't stick.
>
>
>Best Regards,
>
>Steve
>____________________________________________________________________
>
>
>On Sep 16, 2007, at 12:41 PM, James Maher wrote:
>
>>Is there anyone in this group who is running Mogas with ethanol 
>>exclusively and also has
>>fiberglass fuel tank(s)?
>>If anyone fits this profile and their tanks are holding up and not 
>>leaking or softening please respond with what type of resin system 
>>was used.
>>I used the Aeropoxy brand epoxy and this did not hold up.
>>I am looking for an alternative.
>>Thanks,
>>Jim