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why dose me epoxy leak?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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why dose me epoxy leak?

Unread postAuthor: ilovefire » Mon Sep 06, 2010 3:09 am

hey i have been having problems with the epoxy joints leaking on this gun
http://www.spudfiles.com/forums/coax-ha ... rt,30.html
not sure what i have been doing wrong i have been using 2000psi rated epoxy and have been roughening the surfaces but still after about a week it like to start leaking :evil: can some one tell me what im doing wrong? it has just sprung a leak where the black pipe joins the smaller silver one
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Unread postAuthor: Crna Legija » Mon Sep 06, 2010 3:35 am

if you can try to bevel the edge so that the epoxy get pushed back into it and seal it better.
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 06, 2010 7:19 am

It's a tricky join, what I usually do is make a mould around it and pour the epoxy in to surround it completely, a bit like the "tee" section where the magazine meets the barrel of my marble autocannon:

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Unread postAuthor: jakethebeast » Mon Sep 06, 2010 12:38 pm

two words: moar epoxy :twisted: :twisted:
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Unread postAuthor: iknowmy3tables » Tue Sep 07, 2010 11:49 am

if you're need to stack more epoxy on it's easiest to use something thicker like JBweld or JBweld puddy, I'd put a thick layer of jb weld around that area
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