How many days after applying film can the windows be opened?
2 Answers
After applying film, windows can be opened after 3 days in summer and 7 days in winter. The reason is that the glass of a car with newly applied film is usually tight, and during the opening and closing of windows, the edges of the film can easily roll up or peel, causing damage to the film. Washing the car is strictly prohibited within 3 days of applying the film to avoid potential film detachment caused by moisture. Therefore, it is advisable to wash the car before applying the film. Within a week after applying the film, when parking the car, choose a sunny location to ensure full evaporation of moisture inside the film. Car film, also known as 'auto film,' is a film applied to car windows for aesthetics, safety, and heat insulation.
I just had my car windows tinted last week, and the technician specifically warned me not to roll them down for at least three days. I didn't take it seriously and cracked the window slightly the next day—immediately, the edge near the front door triangle started peeling! I rushed back to have the technician re-press it with a squeegee to fix it. Now I understand: the film is applied using installation fluid, and if you roll down the window before the moisture dries, the seal can pull on the film edges. Especially under the scorching summer sun, high temperatures actually help the film cure faster, usually securing it within 72 hours. But if it's rainy or overcast, waiting five days is safer. Oh, and be extra careful with the rear window where the defroster wires are—the raised heating elements are the most likely to snag the film.
