my air cannon keeps leaking plz help

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Crna Legija
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Sun Jul 20, 2008 6:24 am

i have a fire extinguisher and its just a bit bigger then 1/2 inch and it keeps leaking i put lost of PTFE tape and still leaks at around 100 psi can eny1 plz help me ?
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just a pic of my air cannon
just a pic of my air cannon
this is where it is leaking
this is where it is leaking
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Necrosis
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Sun Jul 20, 2008 6:31 am

Just a question.. did you actually thread it on? Or did you just put the tape on and then pushed the extinguisher on?
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VH_man
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Sun Jul 20, 2008 6:58 am

1 word......

EPOXY RESIN

it will hold that sucker on ther NICE and solid without any leaks.

im interested to see the final product it looks sweet........
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Fnord
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Sun Jul 20, 2008 8:32 am

1 word......

EPOXY RESIN
?

But yeah, that should work. I'd smear JB weld on the threads myself.
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Crna Legija
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Sun Jul 20, 2008 8:34 am

EPOXY RESIN is that just a 2 part glue?


and yer it threads on but it moves around a bit
TurboSuper
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Sun Jul 20, 2008 9:38 am

Epoxy is effectively a 2-part glue (and is considerably stronger than most other glues), and would probably be your best bet. JB Weld is the best stuff to use.
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jr
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Sun Jul 20, 2008 11:07 am

If the chamber is moving around that is bad! Use the epoxy. When I did my extinguisher I smeared the pipe fitting and the threads on the extinguisher. No leaks and that dog ain't coming out no how.


O and by the way; we like to use proper grammar. So if you want a little respect on this forum use proper grammar. Please (not plz)! And if you need help use the spellcheck button.
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nivekatoz
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Sun Jul 20, 2008 1:29 pm

If I were you ,I would have someone weld a reducer on it that has npt threads. You could also try to find a steel or aluminun oxygen tank and have the threads recut so they will be npt or have some welded on..
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