X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao105.cox.net ([68.230.241.41] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2334813 for flyrotary@lancaironline.net; Mon, 17 Sep 2007 01:27:20 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.41; envelope-from=alventures@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao105.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20070917052641.XHMS3549.fed1rmmtao105.cox.net@fed1rmimpo02.cox.net> for ; Mon, 17 Sep 2007 01:26:41 -0400 Received: from BigAl ([72.192.143.193]) by fed1rmimpo02.cox.net with bizsmtp id pHSf1X00C4AaN600000000; Mon, 17 Sep 2007 01:26:39 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Fiberglass fuel tanks Date: Sun, 16 Sep 2007 22:26:53 -0800 Message-ID: <000001c7f8f3$bd72b0a0$6401a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C7F8B0.AF51BA90" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C7F8B0.AF51BA90 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Check with Perry Mick (I think that last name is correct; is he on this list?). I recall he has said he has run 10% in his LongEZ for years = with no prob. I would guess it is EZ-poxy. =20 I use mogas in my Velocity with EZ-poxy, but so far there is no ethanol = in most gas here in CA. =20 Al =20 =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of James Maher Sent: Sunday, September 16, 2007 2:11 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Fiberglass fuel tanks =20 Steve, Thanks for the reply. I'm am sure that Vinyl ester will hold up to Avgas as intended with the Glasair but I am looking for anyone who has experience with it and modern-day = Mogas with ethanol. Are Glasair parts made with vacuum bag and autoclave technology? My epoxy tank held up well for almost 5 years to Mogas with MTBE but = soon after ethanol was added it began to deteriorate. In all the searching on the web I have not found anything that says conclusively that Vinyl-ester is impervious to E10 (Gasoline with 10% ethanol). I'd like to find someone who can say that they have been running this = fuel for a year or more without any adverse effects on their fiberglass fuel tanks. There are many using Mogas (RV's) but most have aluminum tanks. Also, many regions in the country do not ad ethanol to the Mogas. There are many fiberglass aircraft but most use Avgas. I need to find the small minority who have both fiberglass fuel tanks = and use Mogas with ethanol. I figure if those folks are out there, they will be on this list. Hope to hear from them. Jim Steve Thomas wrote: 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. =20 =20 However, be cautious about using any vinyl-ester or polyester resin = system over epoxy. It won't stick. Best Regards, =20 Steve=20 ____________________________________________________________________ =20 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 =20 =20 ------=_NextPart_000_0001_01C7F8B0.AF51BA90 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Check with Perry Mick (I think = that last name is correct; is he on this list?).  I recall he has said he has = run 10% in his LongEZ for years with no prob. I would guess it is = EZ-poxy.

 

I use mogas in my = Velocity with EZ-poxy, = but so far there is no ethanol in most gas here in CA.

 

Al  

 

-----Original = Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of James Maher
Sent: Sunday, September = 16, 2007 2:11 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: Fiberglass fuel tanks

 

Steve,

Thanks for the reply.

I'm am sure that Vinyl ester will hold up to = Avgas as intended with the Glasair

but I am looking for anyone who has = experience with it and modern-day Mogas

with ethanol.

Are Glasair parts made with vacuum bag and = autoclave technology?

My epoxy tank held up well for almost 5 years = to Mogas with MTBE but soon after

ethanol was added it began to = deteriorate.

In all the searching on the web I have not = found anything that says conclusively that

Vinyl-ester is impervious to E10 (Gasoline = with 10% ethanol).

I'd like to find someone who can say that = they have been running this fuel for a year or more without any adverse effects on = their fiberglass fuel tanks.

There are many using Mogas (RV's) but most = have aluminum tanks.

Also, many regions in the country do not ad = ethanol to the Mogas.

There are many fiberglass aircraft but most = use Avgas.

I need to find the small minority who have = both fiberglass fuel tanks and use Mogas with ethanol.

I figure if those folks are out there, they = will be on this list.

Hope to hear from them.

Jim

Steve Thomas <steve@stevet.net> wrote:

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

 

 

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