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Which epoxy?


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#1 jdb1930

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  • Jeremy
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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

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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

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Posted 22 January 2018 - 04:15 PM

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

http://www.cozybuild...Price_Table.pdf

 

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

http://www.cozybuild...poxyDoDonts.pdf

 

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. 


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


#4 jdb1930

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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.






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