Is the car front windshield film applied on the inside or outside?
2 Answers
Automotive front windshield film is applied on the inside. If installed on the outside, exposure to wind and rain would reduce its service life by at least two-thirds. Moreover, if applied externally, glass shards from impact could still cause injuries, failing to serve the purpose of a safety film. Car window tinting involves applying a thin film layer to the vehicle's front and rear windshields, side windows, and sunroof. This film is also known as solar film or heat-insulating film. The primary functions of car window tinting are to block ultraviolet rays, reduce heat transfer, prevent injuries from flying glass shards, and minimize glare. Additionally, due to the one-way visibility feature of solar films, it helps protect personal privacy. Furthermore, car window films can physically reflect sunlight, lowering the interior temperature and reducing the use of air conditioning, thereby improving fuel efficiency.
I remember asking the same question to the technician during my first window tinting session. He explained while cleaning the inner side of the windshield: 'It would be foolish to apply the film on the outside. Exposure to wind, rain, and the constant movement of wipers would scratch the film within days. Plus, the outside has more dust, making the adhesive less secure, and any peeling could affect driving safety. Applying it inside provides a cleaner environment, avoids wiper damage, and significantly improves durability. Just remember not to roll down the windows for three days after application to let the moisture evaporate naturally and prevent bubbles.' Now, after more than three years, the tint still offers excellent sun protection, noticeably lowering the interior temperature and making summer drives much more comfortable.
