The main carrier of protective film is plastic. Generally, the protection film on plastic steel window are mainly made from raw materials including PE, OPP, PET which will be easy to get aged after a long time. Therefore, it's necessary to tear off the film in time.
It will be difficult to remove after the window is installed for too long.
That's because it will be difficult to remove after the window is installed for too long. And the film affects the appearance of the window.
