An upstairs en-suite has had plastic film applied to a window to give privacy.
This is now yellowing and peeling off around the edges.
Is there a good method of removing this prior to fitting new film?
The most obvious method seems to be dissolving the glue holding it on. Big question is which solvent to use.
Possible ones could be nail varnish remover and automotive thinners.
Alternative might be gently(!) heating with a hot air gun.
Interwebs give all sorts of answers including a scraper and wire wool and "just prise the corners up then peel off".
TIA
Dave R