Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.5b1) with ESMTP id 812302 for rob@logan.com; Fri, 13 Jul 2001 08:09:31 -0400 Received: from imf13bis.bellsouth.net ([205.152.58.173]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71175U5500L550S0V35) with ESMTP id com for ; Thu, 12 Jul 2001 20:56:42 -0400 Received: from dgwest ([216.78.8.109]) by imf13bis.bellsouth.net (InterMail vM.5.01.01.01 201-252-104) with SMTP id <20010713010631.EQVR25294.imf13bis.bellsouth.net@dgwest> for ; Thu, 12 Jul 2001 21:06:31 -0400 Message-ID: <000901c10b37$100bcc40$6d084ed8@dgwest> From: "Dana Westphal" To: Subject: Re: sticky pump hardener color Date: Thu, 12 Jul 2001 19:59:25 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Awhile back, there was a long LML "thread" containing many posts regarding the epoxy pump and the Jeffco epoxy systems. I don't have the time to research the archives right now, but I seem to recall that the darkening could be due to "aging" and/or the absorption of moisture (change in characteristics when exposed to air, etc.). Please don't take my word for it, but I think the consensus was that this wouldn't have a detrimental impact on bond strength if the system was still within the "shelf life" of the system. I have performed lay-ups with the darkened epoxy mixture and the "flash time" and apparent strength characteristics seemed identical to the day I opened the bottles - but please, check for yourself. On a similar note, I have chosen the "slow-setting" Jeffco epoxy system for the Legacy. It mixes at the same ratio as the standard system, so those "standard ratio" epoxy pumps (like the one I own) will still work with this system. This system supposedly provides for a 30 minute "pot life" versus 20 minutes for the standard system. In the hot climate here in the South, the longer "flash" times will certainly be beneficial, especially for those multi-bid bonds. However, the downside of this system is that it is HAZMAT and, as such, will result in higher shipping costs and be a bit more "noxious" to work with. Dana Westphal Legacy Kit #59 August Workshop >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>