Tweeter dust cap glue for KEF Q-series (Uni-Q)

Heel there and very nice Christmas🙂

I'm working over (new ferro fluid) some tweeters from some KEF 65.2 and Q5's. I've cleaned / removed all the old glue on the plastic parts. I need to know what kind of glue I should use to mount the dust cap with coil to the plastic ring. I don't want to use super glue (also not the slow drying ones). Would some tiny bits of bison kit or tix serv the purpose or would I be needing something else?
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thx in advance

willem