However, if you're looking for a construction adhesive for your intricate woodworking projects, polyurethane may be more trouble than it's worth. Instead, consider sticking to wood-specific glues ...

There are four main types of wood glue, including polyvinyl acetate (PVA), polyurethane, epoxy, and cyanoacrylate. Clamps are used to help ensure that the joint does not shift or separate while it ...

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.