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300psi + epoxy putty

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300psi + epoxy putty

Unread postAuthor: pat123 » Fri Jun 13, 2008 3:37 pm

I am working on a piston valve shotgun. for the pipe that the piston seals against, I epoxied it into the back of a bushing. do you think the epoxy putty will be able to keep it from sliding out with 300psi of pressure?
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Unread postAuthor: MaxuS the 2nd » Fri Jun 13, 2008 3:42 pm

If done well, then yes.
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Unread postAuthor: Tom » Fri Jun 13, 2008 3:50 pm

Did you sanded the pipe as well al the bushing? Then there should be no problem at all.
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Unread postAuthor: Darkside 6ix » Fri Jun 13, 2008 3:51 pm

Lol...I can just see the barrel flying out instead of the projectile. But like MaxuS said, If it is done right then yes it probably will work.
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Unread postAuthor: pat123 » Fri Jun 13, 2008 3:51 pm

Did you sanded the pipe as well al the bushing? Then there should be no problem at all.


It is steel.
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Unread postAuthor: Matheusilla » Fri Jun 13, 2008 3:56 pm

Perhaps a sketch of how it is put together that shows how it is epoxied would help us.
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Unread postAuthor: pat123 » Fri Jun 13, 2008 4:17 pm

here is a pic
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Unread postAuthor: Matheusilla » Fri Jun 13, 2008 4:25 pm

I don't see any problems, the epoxy is pretty much only a sealant for that application. You should be fine, just as long a the bushing stays in place.
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Unread postAuthor: DYI » Fri Jun 13, 2008 8:25 pm

Considering that there's essentially no force trying to push the pipe out, and (by the looks of it) over 1/2" of steel opposing whatever force there is, yes, I think the epoxy should be fine. I've had JBweld survive several thousand psi in sparkplug type applications exposed to a lot more violence than this will be.
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Unread postAuthor: brogdenlaxmiddie » Fri Jun 13, 2008 9:30 pm

DYI wrote:Considering that there's essentially no force trying to push the pipe out, and (by the looks of it) over 1/2" of steel opposing whatever force there is, yes, I think the epoxy should be fine. I've had JBweld survive several thousand psi in sparkplug type applications exposed to a lot more violence than this will be.


Was that the one me and you were trying to troubleshoot?
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Unread postAuthor: DYI » Fri Jun 13, 2008 9:34 pm

Was that the one me and you were trying to troubleshoot?


Honestly, I had absolutely no idea what you were rambling on about in half of those PMs :lol:
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Unread postAuthor: Carlman » Sat Jun 14, 2008 2:57 am

DYI wrote:Considering that there's essentially no force trying to push the pipe out, and (by the looks of it) over 1/2" of steel opposing whatever force there is, yes, I think the epoxy should be fine. I've had JBweld survive several thousand psi in sparkplug type applications exposed to a lot more violence than this will be.


wouldnt there be a little less than 300 pounds trying to push it out assuming it has a 1" seat?
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Unread postAuthor: pat123 » Sat Jun 14, 2008 9:01 am

the seat is 3/4" and that isn't a 1/2" of steel holding it in those are the threads.
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Unread postAuthor: DYI » Sat Jun 14, 2008 8:09 pm

wouldnt there be a little less than 300 pounds trying to push it out assuming it has a 1" seat?


Exactly. As I said before, hardly any force. If it was a 1" seat, there'd actually be 236lbf on it at 300 psi.
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