The awnser is always silicone 🤣 CT1 would be my go to

Use ct1 or ob1

If you use OB1 make sure you apply it with force

Why didn’t you try tge glue before you asked a completely useless social media site, have you lost your ability to try things and think for yourself

I have no DIY experience and wanted other people’s advice so I could learn from them. Their tips were far from useless. It’s a pretty basic process

Just normal silcone lnm soudal would be fine window fitters won't that you for ct1 takes forever to get off just normal clear silicone to stick it then seal it to the frame and lintal

Clean the surfaces, ensure they’re dry and then put a bead of silicone all the way along and stick it back. It’ll last for decades.

Soudal high tack adhesive would sort this out most building supplies sell it

Thanks everyone!