Cover glass from PSC is often covered by a protective film. This is done to prevent damage during transport or handling of the cover glass before it is mounted. It is also applied to hard coated cover glass, and it is an extra service to maintain high quality in every part.
It can, however, be difficult to remove the protective film. In the end it is a matter of cost, as difficulties with removal will have an influence on time spent mounting the cover glass. That is why we have made an instructional film on how to easily remove the protective film.