What are the consequences of not applying window film to a car?

[LaCharles]

Not applying window film is certainly feasible, but it comes with many drawbacks. For instance, if the weather gets hot and the car is parked in an open-air parking lot for an extended period, the temperature inside the car will rise significantly compared to a car with heat-insulating film, accelerating the volatilization of plastic products inside the car. Moreover, prolonged exposure to unfiltered ultraviolet rays can easily cause the car's interior to fade. Additionally, if you plan to apply window film, it is recommended to opt for a shatterproof film for safety reasons. For example, many car owners use SunTek STK window film, which is shatterproof. While researching window films online, I came across posts from fellow car enthusiasts who had applied SunTek STK film. In one case, the rear windshield shattered during reversing, but the glass did not scatter everywhere. Instead, it remained adhered to the film as a whole, preventing secondary injuries to passengers from flying glass shards. From a safety perspective, this is highly advisable.