Is car window film applied on the inside or outside of the glass?
2 Answers
Car window film is applied on the inside of the car glass. Below are the functions of car window film: Enhancing safety: Explosion-proof performance, preventing injuries from flying glass shards; UV resistance, protecting against harm to the human body, dashboard, and leather seats; anti-glare function, reducing the impact of strong sunlight, oncoming headlights, or snowy conditions; privacy enhancement, making it difficult to see inside the car from the outside; scratch resistance, maintaining clear vision—the outermost layer of high-quality car film is a scratch-resistant layer, ensuring the surface remains undamaged during normal use and keeping the view clear, thereby improving driving safety. Enhancing comfort: Heat insulation, reducing the burning sensation inside the car; shorter air conditioning cooling time after parking, reducing energy consumption. Enhancing aesthetics: Decorative function, with appropriate color matching to enhance visual appeal.
After driving for over a decade and experiencing multiple window tinting sessions, I've noticed that car window films are always applied to the interior side of the glass. Why is that? If the film were applied to the exterior, exposure to wind and rain would quickly cause it to fade and wear out, much like car paint. Additionally, strong winds while driving could potentially peel the film off. Applying it to the interior side is much more stable—the inside of the glass isn't exposed to external dirt and is protected from scratches by branches or stones. The installation process is also simpler: the technician first cleans the window, sprays water to allow the film to slide into place on the interior side, and then smooths out any air bubbles. I recommend choosing a film with heat-blocking properties, as it can reduce the interior temperature by over 10 degrees in summer, saving on air conditioning costs. Be careful not to choose a film that's too dark, as it can impair visibility at night, making driving hazardous. Low-quality films are prone to bubbling, so it's advisable to inspect them every two years and clean them gently with a soft cloth. This approach is both cost-effective and safe.
