norbert-walter
commented
1 month ago The problem occurs when there are extreme temperature differences. The film then separates from the plexiglass pane. The problem is probably caused by different thermal expansion coefficients between the film and the plexiglass. The film was applied according to the manufacturer's instructions. On the side facing the plexiglass there is an adhesive layer that is slightly sticky if the protective film is removed before application.
https://www.youtube.com/watch?v=Ep2jdwta2xM
The problem could also be that I was sold a different film than the one I ordered and that it is an inferior copy or imitation. The origin of the film could not be determined with certainty.
Temperature differences should actually not cause such problems between the film and the front glass.
After 1 day of exposure to NL sun, the filter foil began to detach from the pane and form blisters. The blistering spread all over the display the following days (even without further exposure to the sun).