Mailing List flyrotary@lancaironline.net Message #47980
From: Steve Brooks <cozy4pilot@gmail.com>
Subject: RE: [FlyRotary] Re: Vinay Ester resins
Date: Sat, 5 Sep 2009 07:38:37 -0400
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
John,
Sounds like you came out pretty good considering, and good news on you
moving back to Florida.  I read a previous email about your issue with the
fuel tanks, so I checked mine, and didn't see an issues so far.  I used MGS
285 epoxy, but on the fuel tanks, I also coated them with the Jeffco
sealant.  So far I have not had any issues with that, but I am keeping a
close eye on it.

I am transporting the plane home this morning for the addition of the EM3,
and swapping out the engine core with one I just rebuilt.  The engine in
there now became increasingly hard to start, and there is a ticking sound
that didn't used to be there.  I had some detonation issues a while back,
and suspect that I broke a seal, though compression doesn't show much wrong.
I also want to do some paint touchup while I have it home also.

Regards,
Steve Brooks
Cozy N75CZ

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of John Slade
Sent: Friday, September 04, 2009 1:16 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Vinay Ester resins

You're welcome.
You may also find this info about using the stuff helpful:
http://forum.canardaviation.com/showthread.php?t=4675&highlight=vinyl+ester

David Moyer wrote:
> Thank you very much that will be helpful in my fuel tanks in my Cozy.
> Glad to hear you and the plane are doing well.
>
> David Moyer
>
>
>
> John Slade wrote:
>> Steve,
>> The stuff I used is was from http://www.fibreglast.com. They're
>> 1110/69-A Vinyl Ester Resin system is used for underground fuel pipes
>> and in aerospace fuel applications. They claim that it's highly
>> resistant to ethanol and other gas additives whatever the percentage
>> mix. Its early days, but I've had no problems with it so far.
>> John
>>
>> Steve Thomas wrote:
>>> Jim,
>>>
>>> A couple of questions for you:
>>>
>>> 1.  How is the vinyl ester holding up to the ethanol?  Do you have
>>> any ability to inspect the tank interior?
>>> 2.  Do you know the percentage of ethanol in the gas you are using?  
>>> Here in California it is currently 4.7%, scheduled to go up to 10%
>>> in the near future.
>>> 3.  Do you recall what formula of vinyl-ester you used?  411-350?  
>>> 411-45?  Other?
>>>
>>> There is still a great debate on how ethanol affects even vinyl
>>> ester.  I would really appreciate knowing more about your
>>> experience.  The Ashland Derakane Chemical Resistance Guide says
>>> that the 411 series of vinyl esters are safe up to 10% ethanol.
>>>
>>> Best Regards,
>>>
>>> Steve Thomas
>>> _______________________________________________________
>>>
>>>
>>>
>>>
>>>
>>> On Sep 4, 2009, at 6:17 AM, James Maher wrote:
>>>
>>>> I've since switched to a vinyl ester tank.
>>>>
>>>>
>>>> Jim
>>>> Dyke Delta N11XD
>>>
>>>
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>>
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