and that seemed to work on some slot car parts - gluing ABS body mounts to the styrene shells.

Worth a try if there is some kicking around.

Ambroid just gave up trying to do businss in California many years ago. CARB told them they had to modify their process for mixing to cut down emissions, which they did a substantial expense. Then Cali came back... "oops, our bad, its actually stricter than that, and not we're not giving you an exemption!"

Ownership closed the doors and threw in the towel.