X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from [68.202.132.19] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WEBUSER 5.1.5) with HTTP id 1782141 for flyrotary@lancaironline.net; Mon, 22 Jan 2007 01:43:36 -0500 From: "Marvin Kaye" Subject: Re: [FlyRotary] Re: alcohol in fuel To: "Rotary motors in aircraft" X-Mailer: CommuniGate Pro WebUser v5.1.5 Date: Mon, 22 Jan 2007 01:43:36 -0500 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain;charset="iso-8859-1";format="flowed" Content-Transfer-Encoding: 8bit Just another data point for you to add to your list. Jeffco 1307 resin with 3102 or 3156 hardener is a 100:25 system by volume, or 100:22 by weight. The differences in the hardeners are time to cure... the 3102 is a fast cure, with a 15 minute pot life, the 3156 is a slower cure, with 30 minute pot life. I also use their 3179 hardener down here in FL where the temps get outrageous in the summertime, for a 45-50 minute pot life. The 3179 also has a much lower viscosity than the other hardeners so it makes a thinner mixture... makes wetting out much easier, even with temps down into the 60s. Once again, this is the resin system used in the Lancairs. Dale Rogers wrote: To put a bit of perspective on this, one will be hard pressed to find a laminating epoxy that is in the 100:25 range, such as Al W wrote. E-Z Poxy 100:45 by weight MGS 285/287 (and 335) 100:45 by weight Pro-Set 100:30 by weight AEROPOXY is 100:27 by weight ACSpruce's data on the West System 105/205 spec was "5:1" which suggests it is a volume measurement, but it doesn't have the Rutan Blessing, last I knew. IIRC, Perry Mick used MGS 335 and runs auto fuel in his EZ.