Why Are There Always White Spots When Applying Car Film?

[Adriel]

White spots often appear when applying car film because air gets trapped inside. Here are some additional details: 1. The function of car film: A thin film, also known as solar film or explosion-proof heat insulation film, is applied to the front and rear windshields, side windows, and sunroof of a vehicle. Its main purposes are to block ultraviolet rays, reduce heat, and prevent injuries caused by sudden glass shattering. Additionally, due to the one-way visibility feature of solar film, it helps protect personal privacy. It can also minimize damage to interior items and passengers caused by UV exposure and, to some extent, help save fuel consumption. 2. Post-application precautions: After applying car film, avoid rolling down the windows for three days. Do not wash the car during this period. For vehicles with sunroofs, avoid opening the sunroof while driving, especially at high speeds, within the first three days. In winter, it is recommended not to roll down the windows or wash the car for a week after application. The front and rear windshields may take about a month to fully dry.