---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Sat 04/18/20: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:36 PM - Re: Its so long since I bought Araldite /Epibond 420 (n7188u) 2. 07:10 PM - Re: Its so long since I bought Araldite /Epibond 420 (n7188u) ________________________________ Message 1 _____________________________________ Time: 05:36:35 PM PST US Subject: Europa-List: Re: Its so long since I bought Araldite /Epibond 420 From: "n7188u" Daniel, A couple of years ago I found out Aeropoxy supplies the adhesives used to manufacture the Cirrus so I had a conversation with them since I wanted an alternative to 420 (because the price was outrageous). They recommended one of their structural toughened epoxies adhesives which is equivalent to that used to manufacture the Cirrus. Equivalent because the PN of the stuff used in the Cirrus comes in drums and the one I got you can buy a quart but same epoxy according to them. I ended up using the 420 for critical structural stuff and the aeropoxy for not so critical items. The stuff is great, easy to work with and I did pull and impact test on our planes substrates and its tough stuff. Heck, if its good for closing the wings in the Cirrus it should be ok for non ultra critical stuff (actually in my opinion its as good as 420). It is much much less expensive than 420. I can get you the number once I get to my hangar. BTW, usual disclaimer: Im not claiming its good for your application. Use at your own risk. But I like it and you dont have to be Boeing to buy it :) Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=495898#495898 ________________________________ Message 2 _____________________________________ Time: 07:10:35 PM PST US Subject: Europa-List: Re: Its so long since I bought Araldite /Epibond 420 From: "n7188u" The Aeropoxy PN is ES6240. One warning I make about this epoxy is that it is white and the hardener is clear which means that when you mix it you really can't see if it got mixed properly by it's color (or looks). I had no issues with this since I am very methodical about measuring and mixing the epoxy. I always use a timer and mix for 3 minutes ensuring I scrape walls, bottom corners, etc. It always cured properly so no issue with that but be warned that its color is a bit disconcerting. It is a bit thicker than 420 but mixes well with flox. I paid around $70 per quart kit a couple of years ago and bought directly from PTM&W. As I mentioned, I was told by PTM&W this epoxy is equivalent to that used in the Cirrus airplane for structural bonding. Again, if you decide to use it please do so at your own risk but I found it to be a good alternative for items such as the spar cups, bedding for bonding LG frame to CM, phenolic guides, etc. I still used 420 for items such as fuselage bonding, wing skin, stab bearings, tailpost, CM bonding, etc. Using the ES6240 for other not so critical areas allowed me to ensure I would have enough 420 for the critical ones since I had no intention of buying 420 for the price they want for it these days. Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=495900#495900 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.