jany77 Posted January 6, 2008 Share Posted January 6, 2008 hi guys what is the main difference between hardener 83 and 84 for ez poxy what i readed is just cure time ,what ez hardener are you guys using if anyone here still use ez poxy Quote Link to comment Share on other sites More sharing options...
Big Steve Posted January 7, 2008 Share Posted January 7, 2008 I have never used ez 83 but have built over half a plane with ez 84 I am using it mainly because it works with my pump and when I started the plane I could not get mgs. I have about 4 hours of working time with the 84 before I am working on cured fiberglass. It is pretty thick stuff and Keeping it hot in a hot box helps. I also carry a heat gun and use it on all layups to help it wet out. It is tough stuff and really hardens up when cured. It is not as pretty a layup as the clear mgs but it is more fuel resistant and I still have almost 9 gallons so I keep using the stuff. I think it is also the least exspensive of the epoxies approved for the eze aircraft. When I run out I am going to try mgs so maybe some of my parts in the end will be pretty. Here is a picture that shows what a part looks like using ez 84 nice dark brown. STeve Quote Steve Harmon Lovin Life in Idaho Cozy IV Plans #1466 N232CZ http://websites.expercraft.com/bigsteve/ Working on Chapter 19,21 Link to comment Share on other sites More sharing options...
Lynn Erickson Posted January 7, 2008 Share Posted January 7, 2008 hi guys what is the main difference between hardener 83 and 84 for ez poxy what i readed is just cure time ,what ez hardener are you guys using if anyone here still use ez poxy83 makes thicker epoxy then 84. 84 is a little slower. I use 87 most of the time it is slower and is best for big layups in hot weather Quote Evolultion Eze RG -a two place side by side-200 Knots on 200 HP. A&P / pilot for over 30 years Link to comment Share on other sites More sharing options...
John D. Wages Posted January 7, 2008 Share Posted January 7, 2008 hi guys what is the main difference between hardener 83 and 84 for ez poxy what i readed is just cure time ,what ez hardener are you guys using if anyone here still use ez poxy By no means am I an expert on the subject of epoxies, but I've been using EZ Poxy 10 resin and 83 hardener on my Mark IV, and am very pleased with the results so far. I did a "Google" search on EZ Poxy and found numerous links with lots of information to use. I'm not sure what exact information you're looking for, but that's a good place to start. Also, go to http://www.ez.org/nonownerguide.htm Lot's of good info there as well. Quote Best Regards, John D. Wages N694CZ (reserved) http://www.maddyhome.com/canardpages/pages/johnwages/default.htm Link to comment Share on other sites More sharing options...
jany77 Posted January 7, 2008 Author Share Posted January 7, 2008 thank you guys for your input i have been using 83 hardener for about year but i just placed order for one of 84 what i understand from acs catalog it suppose to be more wiscose but the numbers doesnot say that Quote Link to comment Share on other sites More sharing options...
jany77 Posted January 7, 2008 Author Share Posted January 7, 2008 i just found some interesting stuff but i dont understand if the numbers means if its high better visc or low number lower visci dont get the numbers http://www.cozybuilders.org/Oshkosh_Presentations/2006_EpoxyDoDonts.pdf Quote Link to comment Share on other sites More sharing options...
Marc Zeitlin Posted January 7, 2008 Share Posted January 7, 2008 i just found some interesting stuff but i dont understand if the numbers means if its high better visc or low number lower visci dont get the numbers http://www.cozybuilders.org/Oshkosh_Presentations/2006_EpoxyDoDonts.pdf Higher viscosity (larger number) means that it's thicker - more like honey than water. Generally, the higher viscosity epoxies are for warmer temperatures, but not always. The MGS epoxies have particularly low viscosities for laminating resins, which make is easier to wet out the glass. But a hair dryer with the EZ83/84 will do the same thing. Quote Marc J. Zeitlin Burnside Aerospace marc_zeitlin@alum.mit.edu www.cozybuilders.org copyright © 2024 Link to comment Share on other sites More sharing options...
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