How does static-cling window film work for car windows?

Static-cling window film for car windows is a thin, self-adhesive film that is applied to the inside of a car window to reduce the amount of heat, light, and radiation.

Static-cling window film can be made from various materials, such as polyester or vinyl, which can create a static charge when they come into contact with each other or with other surfaces. When the film is applied to a window, it can stick to the glass because of this static charge, rather than relying on a traditional adhesive. This can make the film easy to install without the need for additional adhesive, special tools, or particular skills.