DIY Doctor UK DIY Forums

Hi all,
new guy's first post here, hoping for some info to sort out hopefully just a cosmetic issue.
our doubleglazing's been in about 20 years now, i beleive, and i've got a couple of windows where the interion plastic trim (is it called "quadrant"?) is coming away (pics attached). i just want to know how i fix it back up, what adhesives i should get and if there's any trick to it or stuff i should look out for. windows are sound aside from this - well, a couple of the locks on the smaller panels are giving up, but this trim issue is first on the list.

thanks in advance.

use low modulus silicone to seal the trim to the frame and acrylic sealant to seal the trim to the plaster

Thanks for the reply.
as i saidn, total noob, so what's teh best way to go about the fix? apply the silicon to the edge of the frame then apply the acrylic sealant to the trim and simultaneously press it to the plaster and slide it up to to the frame? i'm a bit puzzled on how to do the top trim, as the bit on Wickes' site says the Frame Acrylic takes up to 2 days to fully cure, how do i keep the trim in place? :-/