REFLECTOR: EZ poxy & ethanol

[Laurence Coen]

Alex,

So far we have 2 Jeffco failures and 0 EZ poxy failures.  Tell me again why Jeffco is the good stuff.

Larry Coen
N136LC

P.S.: My engine needs 100LL so I have no horse in this race.


From: Alex Balic 
Sent: Friday, June 03, 2011 11:38 AM
To: 'Velocity Aircraft Owners and Builders list' 
Subject: Re: REFLECTOR: EZ poxy & ethanol


I had a similar problem as Chris- although I did not put any mogas in my mains, I had my sump filled with 89 pump gas for engine testing, and after about 6 months, I noticed gas weeping from the bottom- so I  pulled it and the Jeffco had become soft and pasty- not sure what happened there, I re-built the sump using a new batch of Jeffco, but have been running on 100ll since just to make sure there is no problem... I will try the auto fuel again at some point.

 


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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Laurence Coen
Sent: Friday, June 03, 2011 11:16 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: EZ poxy & ethanol

 

Peter,

 

You are not the first to warn people about EZ poxy and ethanol and I doubt that you will be the last.  I refer you to Al Gietzens' email where he has 6 years experiences with ethanol containing fuel in his EZ poxy tanks without a problem.  I personally tested a strip sealed in a container with denatured alcohol with no apparent effect after 6 months. Despite all the warnings, I have never seen or herd of any documented evidence that would indicate that EZ poxy is adversely affected by ethanol containing fuel.  If you have a reference, please share it with the group.

 

Larry Coen

N136LC

 

From: Peter Braswell 

Sent: Friday, June 03, 2011 10:26 AM

To: Velocity Aircraft Owners and Builders list 

Subject: Re: REFLECTOR: Fuel Tank Questions

 

Mark, 

That almost certainly sounds like the EZ poxy that ships with the kit and NOT Jeffco (the really good stuff).  

 

My understanding is that the EZ poxy holds up just fine with aviation fuel but I'd be VERY hesitant to use it in conjunction with fuel containing ethanol.

 

I may have missed, but are you flying an auto conversion?

 

Peter


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On Fri, Jun 3, 2011 at 11:07 AM, Markinchampions <markinchampions at gmail.com> wrote:

It appears as a dark brownish red color. 

Sent from my iPod.


On Jun 3, 2011, at 10:21 AM, "Al Gietzen" <ALVentures at cox.net> wrote:

  I don't know what was used. I didn't build it and I'm not that familiar with fiberglass. 

   

  EZ-poxy is the epoxy system that Velocity sent with the kits; and is most likely what was used.  Shine a light in the tank - should be a yellow/brown/gold color if EZ-poxy, gray if Jeffco.

   

  Al

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