The glue is a solvent plain and simple. It actually dissolves the edges of the parts to be joined. We often call that ooze 'molten' plastic but of course it isn't molten but partially dissolved. The joint then dries and cures as the solvent evaporates. Anyone who has left their pot of glue open knows how quickly it evaporates exposed to air which explains the fairly rapid setting time.I once lost virtually an entire pot of Tamiya Extra Thin that way! It takes much longer for the solvent/glue to evaporate completely from the dissolved plastic layer and that's the process we call curing.
Cheers
Steve
Cheers
Steve
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