An innovative, ecofriendly glue designed by a Cal Poly chemistry research team in collaboration with an East Coast company has been approved for a U.S. government patent. The patent, approved Nov ...

This included everything from epoxy to wood glue and various adhesives for plastics TL;DR: Some superglues seem to weaken PETG, and a construction polyurethane glue is the absolute winner.

One company even sells a hot glue gun-based injection molding kit using polyethylene glue sticks. Their demo video (seen below) seems much more complicated than [scorch]’s efforts, so we’ll ...