Best adhesive for two kinds of plastic?

[Flyover]

This isn't actually a home improvement question, but hopefully your home improvement know-how can help me answer it.

I've got a metal water bottle whose cap is connected to the body by a plastic strap. This plastic strap includes a rigid hinged piece on the body end and a rigid hinged piece on the cap end, with a flexible piece connecting them in the middle. The flexible piece was joined to the rigid pieces with something like a mortise-and-tenon joint.

That joint has failed on one end.

What is the best type of adhesive to put in there to re-join them permanently?

Here's the "mortise": (the bent-looking piece is made from a kind of flexible plastic)


And here's the "tenon": (it's made from a rigid kind of plastic)


And here's how it's supposed to look when it's all together:


Or, if you don't think an adhesive will do the trick, what is another idea for permanently rejoining the pieces?

 

[Eddie_T]

Could it be drilled and pinned together or is the tenon too fragile? Another thought-- braid a paracord loop if it could be attached somehow at the hinge points.

 

[Flyover]

Hmm...Eddie, a couple small holes on each side and two very small zip-ties might do the trick, if I can be confident the holes won't rip/expand.

Simply replacing the whole strap with something else (e.g. braided paracord) is another idea I'll credit to you.

Thanks!

But first I want to be sure appropriate adhesive options are exhausted.

 

[Eddie_T]

I recall someone saying their dad used to make orthopedic shoes using Barge all purpose cement. I got some at Ace Hardware and used it to cement a place where the rubber sole of a shoe was separating from the leather. I also recall using Pliobond to cement my son's bootheel. No guarantees, just something to consider. IIRC Barge is clear and Pliobond is brownish.

 

[Flyover]

I reprioritized my strategy and went with a mechanical fastener solution, because I knew I had the required tools/materials on hand, and I knew they would do the job.

Drilled four holes, inserted two zip-ties, clipped and sanded the ends. Fixed.




Thanks for the idea, Eddie!