X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Received: from mail28.syd.optusnet.com.au ([211.29.133.169] verified) by logan.com (CommuniGate Pro SMTP 5.1.5) with ESMTPS id 1781582 for flyrotary@lancaironline.net; Sun, 21 Jan 2007 16:57:09 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.133.169; envelope-from=lendich@optusnet.com.au Received: from george (d58-105-82-74.dsl.nsw.optusnet.com.au [58.105.82.74]) by mail28.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id l0LLuDTh011042 for ; Mon, 22 Jan 2007 08:56:15 +1100 Message-ID: <003701c73da6$f9d80da0$4a52693a@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: alcohol in fuel Date: Mon, 22 Jan 2007 07:56:14 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0034_01C73DFA.CA5561A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0034_01C73DFA.CA5561A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Al W wrote: After flying for six years, finally removed and disassembled my glass = and foam header tank. During those six years I periodically used ethanol = fuel and whatever. Always used auto fuel. No evidence of degradation of = any component....soft aluminum, foam, epoxy. All looks perfect.=20 That's good news. Just a reminder, all epoxy that is fuel exposed must be high ratio = type. Like 4 to 1. 50/50 ratio epoxies can NOT handle "fuel" over time. That's bad news. Should I conclude from this that EZ-poxy (44-56 by = weight) will NOT handle fuel with ethanol? I assume when you say "fuel" = you mean fuel with ethanol, since experience has shown that EZ-poxy has = handled auto fuel for periods of 15 years in some EZs. Al G HI AL, That's a general rule of thumb as high ratio epoxies tend to be of a = much higher quality than those of general purpose low quality epoxies = often characterized by low ratios. That's not to say there may be = exceptions to the rule, as I honestly don't know myself. George (down under) ------=_NextPart_000_0034_01C73DFA.CA5561A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 

Al W=20 wrote:

 

After flying for six years, finally removed = and=20 disassembled my glass and

foam header tank. During those six years I=20 periodically used ethanol fuel

and whatever. Always used auto fuel.  = No evidence=20 of degradation of any

component....soft aluminum, foam, epoxy. All = looks=20 perfect.

 

That=92s = good=20 news.

 

Just a reminder, all epoxy that is fuel = exposed must=20 be high ratio type.

Like 4 to 1.   50/50 ratio epoxies = can NOT=20 handle =93fuel=94 over time.

 

That=92s = bad=20 news.  Should I conclude from this that EZ-poxy (44-56 by weight) = will=20 NOT handle fuel with ethanol?  I assume when you say =93fuel=94 = you mean fuel=20 with ethanol, since experience has shown that EZ-poxy has handled auto = fuel=20 for periods of 15 years in some EZs.

 

Al=20 G

 

HI=20 AL,

That's a = general=20 rule of thumb as high ratio epoxies tend to be of a much higher = quality than=20 those of general purpose low quality epoxies often characterized by = low=20 ratios. That's not to say there may be exceptions to the rule, as I = honestly=20 don't know myself.

George = (down=20 under)

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