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What glue should I use? Answered

If I want to glue plastic to metal how would I do this? I tried hot glue and it comes right off the metal. I would want a tight seal.

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Kiteman
Kiteman

10 years ago

Two-part epoxy, or superglue. Depends on what you want it to resist, and how close the parts fit without glue.

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killerjackalope
killerjackalope

Reply 10 years ago

I'd recommend the superglue over epoxy when either does, though the joint's a bit more brittle the actual bond's really good.

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Goodhart
Goodhart

Reply 10 years ago

as long as the plastic is not overly porous.

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AlfredoSG
AlfredoSG

10 years ago

Thanks for all the input. I think I'm going to use super glue as suggested, then once it is dry, add some silicone caulk as mentioned by PKM. Thanks!

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PKM
PKM

10 years ago

It may or may not go without saying so I'll say it anyway- make sure you clean both surfaces well so there is no remaining water, grease or dust on them. If the metal is shiny or smooth you could also try lightly roughing it up with sandpaper to give the glue more "key" to attach to. If the glue you use doesn't create a tight seal (if you want it to be waterproof or airtight) then consider using a separate sealant, eg. silicone caulk, to add a seal to the glue's mechanical bond.