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Bonding Copper To Plastic

Sticky situation

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#1 BaronButterball

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Posted 10 June 2009 - 05:25 AM

Alright, I'm trying to add a new barrel to my Nitefinder, and the problem is, I can't get the dang Copper pipe to stay stuck on the plastic! I've tried Contact Cement, I've tried hot glue, neither worked for more than a few minutes.

I can't make stefans worth a crap yet, so I'm still using stock streamlines, and I read that Copper is better than PVC when you want accuracy, and I don't have any PETG nor do I plan to order any.

So, what works best to keep my Barrel on my plastic?
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#2 crinal123

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Posted 10 June 2009 - 05:43 AM

Have you tried epoxy?
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#3 CaptainSlug

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Posted 10 June 2009 - 06:40 AM

I can't make stefans worth a crap yet, so I'm still using stock streamlines, and I read that Copper is better than PVC when you want accuracy, and I don't have any PETG nor do I plan to order any.

Not sure where you read that, but it's utter nonsense.
The material your barrel is made from makes no difference in the accuracy of your shots. The quality and consistency of your dart construction as well as the straightness of your barrel are the main factors in accuracy.

The surface finish of the inside of your barrel will only affect the acceleration of the dart.

As for adhesives, copper and brass are extremely difficult to glue to anything. You can try JB weld, but even that may not work.
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#4 father time

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Posted 10 June 2009 - 07:47 AM

To get a better bond on copper ,brass,or any other metal you could try roughing up the contact point with sand paper or a file.
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#5 Mr BadWrench

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Posted 10 June 2009 - 08:41 AM

Even the infamous JBweld does not stick to copper well. the connection needs to be cleaned thoroughly as Father Time said.
http://www.acehardwa...673.html?ref=42

expensive as hell and hardly worth buying unless you are desperate.


I despise the NF because the basic design was so good but when the made it they did not use its full potential.

You have not given enough information to really help you here. If you are making up your mod as you go along that's fine, but if you are following someone's mod, you should tell us which so we can get an idea on what you're doing wrong. Hotglue sticks to ANYTHING including all precious alloys, wood, plastic, leaves, skin, glass and clothing.

If you are just trying to stick a copper pipe to the end of the NF plunger tube that is your problem, not the fact that its copper or hotglue. IF you wish to mod in this way, you need to assemble the majority of the plunger/spring/catch/tube/barrel lay it into the shell and literally fill all the voids with hotglue permanently attaching the plunger tube and barrel to the shell... 1 little dot of hotglue is never going to hold anything much heavier than a styrofoam cup if there is nothing to support it...

Don
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#6 fallinouttadabox

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Posted 10 June 2009 - 01:27 PM

You could widen the hole on the small orange plunger tube cap so the copper fits through it, then flare to copper out to keep it from comping out.
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#7 BaronButterball

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Posted 10 June 2009 - 02:58 PM

Even the infamous JBweld does not stick to copper well. the connection needs to be cleaned thoroughly as Father Time said.
http://www.acehardwa...673.html?ref=42

expensive as hell and hardly worth buying unless you are desperate.


I despise the NF because the basic design was so good but when the made it they did not use its full potential.

You have not given enough information to really help you here. If you are making up your mod as you go along that's fine, but if you are following someone's mod, you should tell us which so we can get an idea on what you're doing wrong. Hotglue sticks to ANYTHING including all precious alloys, wood, plastic, leaves, skin, glass and clothing.

If you are just trying to stick a copper pipe to the end of the NF plunger tube that is your problem, not the fact that its copper or hotglue. IF you wish to mod in this way, you need to assemble the majority of the plunger/spring/catch/tube/barrel lay it into the shell and literally fill all the voids with hotglue permanently attaching the plunger tube and barrel to the shell... 1 little dot of hotglue is never going to hold anything much heavier than a styrofoam cup if there is nothing to support it...

Don



I was following Rag's mod. I already removed the ARs and the dart peg.

Everything else has worked fine.
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#8 cheesypiza001

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Posted 10 June 2009 - 03:43 PM

Stock streamlines do not come close to fitting snugly enough in copper for a springer... At least in my experience.
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#9 spartan062

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Posted 10 June 2009 - 03:45 PM

Have you tried BOTH Contact Cement AND hot glue? I have found that to be quite effective.
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#10 Keith

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Posted 10 June 2009 - 04:33 PM

1/2'' copper tube fits into cpvc couplers nicely too. You could glue on the coupler and just stick the copper into it. Then you could make a speed-loader, or switch over to cpvc barrels if you start using stefans.

Edited by Keith, 10 June 2009 - 04:34 PM.

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#11 white moonlight

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Posted 10 June 2009 - 06:57 PM

If you only use streamlines than do what the other people said,
but if you choose to use like taggers than a CPVC barrel will work well.
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#12 Vinnie D

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Posted 11 June 2009 - 01:17 AM

Copper isn't good for a NF, use PETG or CPVC for that one. It needs a tight barrel. I'd only suggest using copper in a longshot or recon when you're not modifying the breech. Copper is really only good for clip fed or other leaky guns where you need a loose fit. It improves accuracy specifically on those guns but not a NF, and in my experience you trade some range off for that improved accuracy.

But for making copper stick, I've had no problems with just hot glue as long as you rough it up a little first, though typically it's because I'm nesting the barrel in something wider, so that setup doesn't really have any leverage going against it.
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#13 wingd man

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Posted 11 June 2009 - 09:21 AM

Simple; weld them together! (There are SO many things wrong with that.)
But if you have the right drill bits or a dremel, you can widen the original barrel and zap-a-gap in the copper one. Really the only good, easy way to get a copper or brass barrel replacement is to nest it inside PVC.

EDIT:

Copper isn't good for a NF, use PETG or CPVC for that one. It needs a tight barrel.

What? Besides PVC, CPVC and PETG are the tightest and loosest fitting barrel materials.

Edited by wing'd man, 11 June 2009 - 09:24 AM.

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