Jump to content


- - - - -

Which epoxy?

  • Please log in to reply
3 replies to this topic

#1 jdb1930


    New Member

  • Members
  • Pip
  • 2 posts
  • Jeremy
  • Texas

Posted 22 January 2018 - 01:01 PM

I am about to start my cozy and I am wondering the best epoxy to use. I have seen EZ Poxy, MGS 335, MGS 285, but I am not sure which one I should use.

#2 TMann


    Got Foam?

  • Verified Members
  • 1,757 posts
  • Thomas Mann
  • Omaha, NE

Posted 22 January 2018 - 04:00 PM

I use MGS335.

Aircraft Spruce does not charge a hazmat fee and it wets out real nice.

T Mann - Loooong-EZ/20B Infinity R/G Chpts 18
Velocity/RG N951TM
Mann's Airplane Factory
We add rocket's to everything!
4, 5, 6, 7, 8. 9, 10, 14, 19, 20 Done

#3 Kent Ashton

Kent Ashton


  • Verified Members
  • 713 posts
  • Kent Ashton
  • Concord, NC

Posted 22 January 2018 - 04:15 PM

There is a comparison here but the 2006 prices are a little old. 



And a Gary Hunter presentation here.  Pay attention to what to use on fuel tanks and what he says about post cures.



I have not bought epoxy in a few years and have lost track of hazardous material shipping costs but I suggest you start with a postal scale and a spreadsheet for mixing, then you can easily switch epoxies any time.  What I do is punch a hole in the cans, fill the cup with as much resin as I think I'll need and add hardener to bring the total up to the spreadsheet weight, then plug the can-holes with a machine screw when done and put them back in the hot-box.  It is not quite as fast as a dedicated epoxy pump but still pretty fast and accurate.  I don't trust the in-the-can-pumps.


I mostly used EZPoxy and 83 resin.  I liked MGS but it started to give me an itch.


Have you joined the Cozybuilder's list?  There is always some discussion of epoxies.  Search the archives. 

Cozy IV N13AM-650 hrs, Long-EZ-55 hrs

#4 jdb1930


    New Member

  • Members
  • Pip
  • 2 posts
  • Jeremy
  • Texas

Posted 22 January 2018 - 05:16 PM

Thank you, I think I will try the mgs335 and go from there.


No I haven't joined the cozybuilders list.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users