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I have two fixtures, a PVC pipe and a (3D Printed) socket made out of PLA that I would like to mate. I made a trip to the hardware store and was intimidated by the selection the fact that most cautioned against using on plastics. What kind of adhesive (and I'm not picky to glue, putty, epoxy or cement etc) do I specifically need?

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What are the requirements for the "mating"? Do they need to be air/water tight, etc? – Edwin Apr 3 '14 at 19:35
Just stick together mechanically. – BB ON Apr 3 '14 at 20:08

Beware that if in a use that is subject to plumbing code, your 3D printed item almost certainly will be a code violation.

The probable best bet (and I'm not guaranteeing success) would be a "Multipurpose plastic pipe glue" - go to the plumbing section, find the PVC pipe cement, don't buy that - look for the somewhat smaller stock of pipe cement that claims to work on PVC, ABS, and perhaps a few other variants of plastics - try that. Use PVC pipe cleaner and primer on the PVC side of the joint. Make some test joints and try to tear them apart after they have had a day or two to cure.

If, as I vaguely gather, PLA is essentially the most common form of hot glue, then judicious and careful use of a hot glue gun would be the other option that might work.

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Forget plumbing code. PLA is used in certain human implants, because it breaks down to lactic acid in as little as 6 months. It wouldn't be suitable in any permanent plumbing application. – Edwin Apr 3 '14 at 19:43

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