That is why we recommend storing acrylic sheets in a well-ventilated and average temperature space at around 15°C and covering them, where possible, with thick cardboard or cloth. You should also not expose the material to direct sunlight as the protective film becomes porous with excessive heat development. Besides, very long storage periods have an impact as well.
The protective film can shrink resulting, in the worst case scenario, in the material becoming unusable as the film can no longer be peeled off without leaving a residue.
Our experts will of course be happy to help you in case of further questions!