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jesse(at)saintaviation.co
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 Posted: Fri Dec 03, 2010 6:52 am Post subject: Ethanol and Proseal |
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Does anybody know off the top of their head how Proseal handles Ethanol? We are thinking about making some "wet wing" tanks for our Maverick flying car (www.mavericklsa.com), but it needs to be able to handle ethanol.
Thanks.
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com
C: 352-427-0285
F: 815-377-3694
do not archive
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rv10builder(at)verizon.ne
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| Posted: Fri Dec 03, 2010 7:06 am Post subject: Ethanol and Proseal |
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call flamemaster (if you have the Vans seal) they will be able to tell you
for sure. I called them to ask about acid etch and they were quick to tell
me that it was not an issue.
--------------------------------------------------
From: "Jesse Saint" <jesse(at)saintaviation.com>
Sent: Friday, December 03, 2010 6:49 AM
To: <rv10-list(at)matronics.com>
Subject: Ethanol and Proseal
| Quote: |
Does anybody know off the top of their head how Proseal handles Ethanol?
We are thinking about making some "wet wing" tanks for our Maverick flying
car (www.mavericklsa.com), but it needs to be able to handle ethanol.
Thanks.
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com
C: 352-427-0285
F: 815-377-3694
do not archive
|
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n520tx(at)gmail.com
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| Posted: Fri Dec 03, 2010 7:07 am Post subject: Ethanol and Proseal |
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On Fri, 2010-12-03 at 09:49 -0500, Jesse Saint wrote:
| Quote: | Does anybody know off the top of their head how Proseal handles
Ethanol?
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My neighbor built a Mazda Renesis powered RV7a and has been running 91
octane MoGas since about 2005. This year, TX went to adding ethanol too
all it's fuel and his tanks are now blistering paint at most all of the
top side tank rivets. The bottoms seem ok so far, theorizing that
something about the ethanol vapor doesn't play nice with the proseal.
He's now running 100LL and no new blistering has shown up.
Just some real world anecdotal evidence.
Ron
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Kelly McMullen
Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ
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| Posted: Fri Dec 03, 2010 1:05 pm Post subject: Ethanol and Proseal |
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I knew an individual that used auto fuel in a 180hp Mooney with
prosealed tanks. The 60's vintage sealant clearly was not as good, and
it all softened and turned to goo over time. Just from auto gas, not
with ethanol.
On Fri, Dec 3, 2010 at 8:04 AM, Ronald Walker <n520tx(at)gmail.com> wrote:
| Quote: |
On Fri, 2010-12-03 at 09:49 -0500, Jesse Saint wrote:
> Does anybody know off the top of their head how Proseal handles
> Ethanol?
My neighbor built a Mazda Renesis powered RV7a and has been running 91
octane MoGas since about 2005. This year, TX went to adding ethanol too
all it's fuel and his tanks are now blistering paint at most all of the
top side tank rivets. The bottoms seem ok so far, theorizing that
something about the ethanol vapor doesn't play nice with the proseal.
He's now running 100LL and no new blistering has shown up.
Just some real world anecdotal evidence.
Ron
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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
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pitts_pilot(at)bellsouth.
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| Posted: Fri Dec 03, 2010 1:34 pm Post subject: Ethanol and Proseal |
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Somewhere in the not-too-distant-past was a thread that basically said
that the old stuff was softened by auto fuel .... and most likely auto
fuel with ethanol ..... but the newer stuff is tolerant of both. Now
that comes from my memory which is suspect. I would suggest going to
the manufacturer (flamemaster) to get the straight scoop lest urban
legend bite you in the ...... fuel tank.
Linn
On 12/3/2010 4:01 PM, Kelly McMullen wrote:
| Quote: |
I knew an individual that used auto fuel in a 180hp Mooney with
prosealed tanks. The 60's vintage sealant clearly was not as good, and
it all softened and turned to goo over time. Just from auto gas, not
with ethanol.
On Fri, Dec 3, 2010 at 8:04 AM, Ronald Walker<n520tx(at)gmail.com> wrote:
>
>
> On Fri, 2010-12-03 at 09:49 -0500, Jesse Saint wrote:
>> Does anybody know off the top of their head how Proseal handles
>> Ethanol?
> My neighbor built a Mazda Renesis powered RV7a and has been running 91
> octane MoGas since about 2005. This year, TX went to adding ethanol too
> all it's fuel and his tanks are now blistering paint at most all of the
> top side tank rivets. The bottoms seem ok so far, theorizing that
> something about the ethanol vapor doesn't play nice with the proseal.
> He's now running 100LL and no new blistering has shown up.
>
> Just some real world anecdotal evidence.
>
> Ron
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rvlist1(at)rv9a.deru.com
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| Posted: Sat Dec 04, 2010 5:55 am Post subject: Ethanol and Proseal |
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On 12/03/2010 07:49 AM, Jesse Saint wrote:
| Quote: |
Saint<jesse(at)saintaviation.com>
Does anybody know off the top of their head how Proseal handles
Ethanol? We are thinking about making some "wet wing" tanks for our
Maverick flying car (www.mavericklsa.com), but it needs to be able to
handle ethanol.
|
Hello -
I have been using MOGAS with ethanol in my RV9a since 2005 with no
negative effects at all.
In 2008 I pulled the tanks to safety wire the internal plumbing per
Van's service bulletin. At that time, with three years of ethanol use,
the tanks looked just as good on the inside as when I sealed them up the
first time. The proseal was still just as firm.
--
Tim Coldenhoff
RV9a N194TC Egg 2.5L NA - Flying!
http://www.deru.com/~rv9a
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