
Car window tinting is not only applied on the inside. There are three types of car window tinting: one for the car body, one for the windshield, and one for the windows. Body tinting can protect the car paint and decorate the car according to personal preferences and style. Windshield tinting can reduce glare and ensure good visibility. Window tinting can protect privacy and avoid direct sunlight. Car window tinting can provide heat insulation, block UV rays, reduce glare, prevent scratches and explosions, reduce energy consumption, protect privacy, and enhance aesthetics. Generally, the tinting for the front and rear windshields and windows is applied on the inside, as long-term exposure to wind and sun can cause the film to peel, curl, or degrade in function. Applying the film on the inside prevents it from being affected by external factors.

Actually, car window films usually refer to the layer of film applied to the inner side of the windows, primarily for heat insulation, sun protection, and UV resistance. However, I've seen many novice car owners mistakenly think it's only applied to the inside—there's also a protective film for the car's paint! That transparent protective film is applied to the metal surface of the car body, like putting a raincoat on the car, which can prevent scratches from small stones. When I helped my neighbor choose a film, I also discovered that besides heat insulation, high-quality window films can provide shatterproof effects, preventing glass from shattering in case of an accident. One thing to note is that when applying inner window film, you should find a skilled technician, otherwise, it's prone to bubbling or leaving adhesive marks.

When I first got my new car, I also thought window tinting was only about the interior side. A friend who owns a car detailing shop told me that car films mainly fall into two categories: the transparent protective film applied to the exterior of the car body and the heat-insulating film for the interior side of the windows. If you're specifically asking about explosion-proof and heat-insulating films, those are indeed applied to the interior side. Last time my car got scratched by a tree branch, I had to reapply the exterior film, which cost over 2,000 yuan—significantly more expensive than interior window films. I'd recommend choosing a lighter shade for the windshield for better visibility and a darker tint for the side windows to enhance sun protection and privacy. The film market can be quite murky, so don't go for cheap, low-quality films that can cause dizziness from the fumes.

I recently had my old car fully wrapped. Actually, the films are clearly categorized: the dark heat-insulating film for the interior of the windows and the exterior paint protection film are completely different materials. When applying the window film, the experienced technician specifically reminded me that the rear windshield has heating wires, requiring extra caution during installation to avoid damaging the heating function from excessive baking. A colleague of mine experienced weakened GPS signals after applying window film, which is a common issue. Nowadays, the newly developed magnetron sputtering films can filter out heat rays while retaining visible light, making summer drives noticeably less scorching.


