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Bonding plastic to metal
Posted: Mon Jan 10, 2011 6:20 pm
by Vincenzo
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?
Posted: Mon Jan 10, 2011 6:22 pm
by Gaderelguitarist
Epoxy is good on metals as well. Just go with the one epoxy. Rough up both surfaces to be bonded and have fun.
Posted: Mon Jan 10, 2011 6:50 pm
by Vincenzo
Ok, because last time I used epoxy on metal, it was brass, and it didn't adhere good. I guess roughening would help though.
Posted: Mon Jan 10, 2011 10:00 pm
by PVC Arsenal 17
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.
Posted: Tue Jan 11, 2011 12:37 am
by jackssmirkingrevenge
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.
Posted: Tue Jan 11, 2011 4:48 am
by nature-boy
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)