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Epoxying Copper

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Epoxying Copper

Unread postAuthor: Mitchza89 » Sat Nov 17, 2007 11:18 pm

Hey spudder's.

I'm looking to make a all copper piston gun. Small bore's are doing my head in. I want this gun to be a mammoth of a marble gun. I've always loved copper guns but one thing that has always turned me away from it is the fact I don't have the tools to solder.

Does anyone know if copper points can be purely epoxied together? I'm aiming for 200+ psi.

I can't really afford anything more then 15 bucks for glue so I don't know if thats gonna be a burden.
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Unread postAuthor: jackssmirkingrevenge » Sat Nov 17, 2007 11:27 pm

With quality epoxy is can use PVC at double that pressure, so copper should be even better - they keyword here however is quality epoxy, i don't know what 15 bucks will buy you.
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Unread postAuthor: Mitchza89 » Sat Nov 17, 2007 11:29 pm

Is there anything that you can recommend that I can easily get in Australia?

I've seen a few epoxies say that they can bold metal But I'm not sure if thats under pressure though.

What do you think mate?
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Unread postAuthor: Thursto » Sat Nov 17, 2007 11:31 pm

At my local hard ware store we i get a tube of Arildite for $10 AUD its super stength, and takes 24 hours to cure. But yeah like jack said Sounds right.
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Unread postAuthor: jackssmirkingrevenge » Sat Nov 17, 2007 11:37 pm

If mixed properly, and if the parts you're bonding have tight tolerances - ie the glue gap won't be very wide - then Araldite should work well. Remember to properly abrade the contact surfaces with a file and rough sandpaper first to optimise adhesion.
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Unread postAuthor: Hotwired » Sun Nov 18, 2007 12:04 am

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Unread postAuthor: miskaman » Sun Nov 18, 2007 12:11 am

Solder it if you have a propane torch.
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Unread postAuthor: Mitchza89 » Sun Nov 18, 2007 12:57 am

I just got back from the hardware shop. I saw some stuff called PC-7 Heavy Duty Epoxy Paste and some stuff called PC-Metal.

It's pretty pricey epoxy but def within my price range.

I'm not sure weather or not to get the epoxy paste or the stick. But thats the stuff I'm thinking of going with. It looks really good.

[/url]http://www.pcepoxy.com/pastepoxies/pastepc7.asp
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Last edited by Mitchza89 on Sun Nov 18, 2007 1:08 am, edited 1 time in total.
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Unread postAuthor: TheTrooper » Sun Nov 18, 2007 1:03 am

Broken Link i think
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Unread postAuthor: Zen/// » Sun Nov 18, 2007 1:09 am

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Unread postAuthor: Mitchza89 » Sun Nov 18, 2007 1:09 am

Cheers Zen, thanks for that mate.
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Unread postAuthor: ALIHISGREAT » Sun Nov 18, 2007 6:31 am

two words... compression fittings, they have been used aver 300psi but if they are too ugly for you like Hotwired suggested JFC is very good.
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Unread postAuthor: Mitchza89 » Sun Nov 18, 2007 6:33 am

Haha way ahead of ya mate. I wrote up a plan using comp fittings about an hour ago. Great minds think alike :D
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Unread postAuthor: ALIHISGREAT » Sun Nov 18, 2007 6:37 am

Mitchza89 wrote:Haha way ahead of ya mate. I wrote up a plan using comp fittings about an hour ago. Great minds think alike :D


:D compressions are cheaper than using JFC, its like £12 for a tiny little bottle of it, i can't wait to see the finished cannon.
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Unread postAuthor: Mitchza89 » Sun Nov 18, 2007 6:39 am

I checked out the stuff that Hotwired suggested. They don't sell it in Aus unfortunately. I'm just trying to weigh up whats cheaper. Copper fittings or brass fittings :?
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