Is the car window film applied on the inside or outside?

[Richardson]

Car window film is applied on the inside for the following reasons: 1. It is not exposed to wind and rain, slowing down the aging process and extending its service life; 2. The film is less susceptible to external interference during use, avoiding scratches or damage. The areas where car window film is applied include: the front windshield, rear windshield, side windows, and quarter windows. The functions of car window film are: 1. Heat insulation and sun protection to reduce the temperature inside the car; 2. UV protection to slow down the aging of car interiors; 3. Preventing injuries to passengers in case of accidental glass breakage; 4. Creating a private space; 5. Reducing air conditioning consumption; 6. Enhancing aesthetics; 7. Reducing glare.

[LeoMarie]

I also struggled with this issue when I first replaced my car window film. Actually, car window films are all applied on the inner side, the one facing the car interior. I later realized that applying it on the outside is too risky: exposed to wind, rain, and sunlight, the film is prone to bubbling, discoloration, or peeling off, and can even get scratched by debris. Applying it on the inside is much safer, effectively blocking heat, sun, and UV rays to protect the interior. I once tried a DIY installation and almost put it on the wrong side, but luckily a neighbor pointed it out in time. Now that it's properly installed, the car feels much cooler, and driving in summer isn't stuffy anymore. Additionally, choosing the right film material is crucial—I prefer branded products. Cleaning the inner surface of the glass thoroughly before installation is key to avoid dust affecting adhesion. The film also enhances privacy, making me feel comfortable and secure. Just remember not to use strong chemical cleaners during maintenance.

[MaggieDella]

I've been driving for over a decade and have plenty of experience with window tinting. The correct method is to apply the film on the inner surface because the external environment is harsh: rain, bird droppings, and dust can erode the film surface, leading to premature failure. Some mistakenly apply it on the outside, only for the film to crack when the wipers move, requiring costly reapplication. I recommend going to a professional shop; they use tools to ensure smooth application and avoid bubbles. After application, the film can reduce glare and improve driving visibility, which is beneficial for safety. Choose a film with appropriate light transmission; overly dark tints may violate regulations. Since applying it on the inside, my car's windows have become more durable, with noticeable heat insulation in summer, making the interior much cooler.

[DominicRose]

Car window film should be applied to the inner side. Applying it to the outer side can easily cause damage, such as bubbling when exposed to water or getting scratched. After proper installation, the interior temperature decreases, making driving more comfortable. Choosing high-quality film is crucial as it provides sun protection and safeguards the vehicle.