Epoxying Copper

[Mitchza89]

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.

[jackssmirkingrevenge]

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.

[Mitchza89]

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?

[Thursto]

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.

[jackssmirkingrevenge]

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.

[Hotwired]

Clicky

[miskaman]

Solder it if you have a propane torch.

[Mitchza89]

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

[TheTrooper]

Broken Link i think

[Zen///]

http://www.pcepoxy.com/datasheets/04pc7back.htm

^^^ Stats on PC-7

[Mitchza89]

Cheers Zen, thanks for that mate.

[ALIHISGREAT]

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.

[Mitchza89]

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

[ALIHISGREAT]

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

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.

[Mitchza89]

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