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Bonding plastic to metal

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Bonding plastic to metal

Unread postAuthor: Vincenzo » Mon Jan 10, 2011 6:20 pm

Since epoxy is good on plastics, and JB Weld is good on metals, would mixing the two bond plastic to metal? I was thinking of a sort of marble pattern to lock the two epoxies together. Any suggestions?
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more_eggs wrote:My teachers hated this one:
Teacher: "Matt, take your iPod out in class"
Me: "beg your pardon sir? I can't hear you, I'm listening to my iPod"
:P
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Unread postAuthor: Gaderelguitarist » Mon Jan 10, 2011 6:22 pm

Epoxy is good on metals as well. Just go with the one epoxy. Rough up both surfaces to be bonded and have fun.
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so many muchness
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Unread postAuthor: Vincenzo » Mon Jan 10, 2011 6:50 pm

Ok, because last time I used epoxy on metal, it was brass, and it didn't adhere good. I guess roughening would help though.
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more_eggs wrote:My teachers hated this one:
Teacher: "Matt, take your iPod out in class"
Me: "beg your pardon sir? I can't hear you, I'm listening to my iPod"
:P
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Unread postAuthor: PVC Arsenal 17 » Mon Jan 10, 2011 10:00 pm

Most epoxy works very well on metals including brass, but be sure to prepare a clean surface. Rough it up with sandpaper and use acetone to get rid of any oils that might be on the surface.
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Unread postAuthor: jackssmirkingrevenge » Tue Jan 11, 2011 12:37 am

JB Weld is an epoxy adhesive.

Mixing adhesives with different curing properties isn't a good idea, as suggested above go with one adhesive and ensure the surfaces are adequately prepared.
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Unread postAuthor: nature-boy » Tue Jan 11, 2011 4:48 am

What plastic do you want to bond to metal?
Because there a several (thermo-) plastics, that can't (or are difficult to) be bonded, even with epoxy :? ...

They are mostly (but not limited to):

Polyethylene (PE),
Polyethylene terephthalate (PET),
Polypropylene (PP),
Polyoxymethylene (POM),
Polytetrafluoroethylene (PTFE, Teflon)
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