What does the full car film provided by the 4S store refer to?
2 Answers
Full car film refers to applying film to all the car's glass, including the front and rear windshields and the side windows. Generally, it does not include the car body and rearview mirrors. After applying the film, it is required not to open the windows for 2-5 days, avoid using the defogging function on the rear windshield, and refrain from using the air conditioning blower on the front windshield. UV protection: Medium and long waves of UV rays can penetrate thick glass, but applying heat-insulating film can block most UV rays, preventing skin damage and reducing the aging of car interiors. Anti-explosion and anti-scratch: High-quality car films have an outer scratch-resistant layer, with a polyester film base that ensures the surface is not scratched and effectively prevents personal injury caused by flying glass fragments, enhancing explosion-proof performance. Privacy protection: Some films make it difficult to see inside the car from the outside while maintaining clear visibility from the inside, effectively protecting privacy and safety. Energy consumption reduction: Applying heat-insulating film can compensate for the loss of air conditioning cooling capacity, instantly lowering the interior temperature and saving fuel consumption to some extent. Anti-glare: When driving at night, the glass can reflect interior objects, affecting visibility. Applying film can reduce glare and ensure good visibility.
I remember when I bought a new car a few years ago, the 4S store promoted that free full-car window film they offered. It was basically just applying transparent film to all the windows, mainly for sun protection and heat insulation. They claimed it could block about half of the sunlight and keep the car cooler. They said it was a promotional gift, but in my experience, the quality was mediocre—it easily developed bubbles and became blurry in less than a year, which was quite annoying. My advice is, if you encounter this situation, first ask whether it's a professional brand; otherwise, you might just waste your time. Later, I replaced it with a high-end film myself, and the effect was significantly better—it provided more durable UV protection and reduced glare while driving. Honestly, most of these freebies from 4S stores are just for convenience—don’t expect top-tier quality, as it might compromise driving safety.
