Return-Path: Received: from smtp.digital.net ([206.228.237.7]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Sun, 24 Jan 1999 06:39:40 -0500 Received: from ddi.digital.net (ddi.digital.net [198.69.104.2]) by smtp.digital.net (8.9.1a/8.9.1) with ESMTP id GAA11810 for ; Sun, 24 Jan 1999 06:39:34 -0500 (EST) Received: from john (max-tnt-61.digital.net [208.14.41.61]) by ddi.digital.net (8.9.1a/8.9.1) with SMTP id GAA17014 for ; Sun, 24 Jan 1999 06:40:11 -0500 (EST) Message-Id: <3.0.3.32.19990124064006.0075ead0@mail.digital.net> Date: Sun, 24 Jan 1999 06:40:06 -0500 To: lancair.list@olsusa.com From: John Cooper Subject: Epoxy shelf life X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> The Epolite resin lasts a long time -- probably several years, maybe more. The hardner is "good" for only about 6 months or so, in my opinion. You can tell when it's time to change it out because it starts to get dark in color. This is subjective, I know, but I chose to use only FRESH hardner on any critical layups. I used the older stuff a little while longer for non-structural things. I am told that the shelf life can be extended by keeping the stuff refrigerated.