What protective measures need to be taken during the construction of automobile window film?

A number of protective measures need to be taken during the construction of automobile window film to ensure the safety of the construction process and protect the appearance and internal equipment of the car. Here are some key protective measures:
1. Install protective pads on the front and rear hoods and other surfaces to prevent the car's paint surface from being scratched during the construction process.
2. Use a disposable plastic protective cover on the inside of the door to prevent the installation fluid sprayed when applying the window film from staining the door, floor and seats.
3. Protect the air outlet of the air conditioner during construction to prevent installation fluid from flowing into the outlet, thereby avoiding short circuit failure of electrical appliances and speakers in the car due to moisture.

Additionally, there are some requirements related to the window film itself:
1. There should not be too many defects in the window film, and there should be no creases, bubbles or scratches on the film surface.
2. For the top of the roll-down window, a small gap of 1-2mm should be reserved to facilitate rough observation and not be easily noticed.
3. The window film should cover the black glaze area of the glass frame to ensure that no light leaks out. At the same time, there should be no edge warping to maintain a beautiful and coordinated appearance.