Is it better to apply dark or light window film?

After buying a new car, you should remember to apply window film, which is mainly used for heat insulation, cooling and explosion-proof lighting, to prevent the window glass from hitting the sun and generating strong light that affects driving. Window film generally comes in two colors, dark and light, so how do you choose the color of window film?

Is the window film dark or light?

At present, my country's "Technical Conditions for Motor Vehicle Operation Safety" clearly stipulates that the visible light transmittance of the windshield and the glass used for the driver's field of vision shall not be less than 70%. Therefore, whether from the legal provisions or safety considerations, when choosing films for the windshield, front door glass and rear window glass, light-colored films should be selected to meet the requirements.

For the sake of privacy, the rear door glass can be equipped with a dark film to better protect privacy and property in the car.

What color is best for car window film?

If family cars can choose, the front windows should be light-colored and the rear windows + rear glass should be dark-colored.

The advantage of applying a light-colored film on the front is that you can see the situation outside the car more clearly when driving at night. Moreover, when using air conditioning in the summer, there are many air outlets in the front. Even if the film color is lighter, the cooling effect will not be too bad. Therefore, using light-colored film on the two front windows can ensure the clarity of the view without affecting the effect of air conditioning in the summer.

The sides of the rear window and the rear glass are covered with dark-colored film. The dark-colored film can insulate the car, cool it down, reduce glare from strong light, and provide safety and explosion-proof properties. In summer, it can effectively reduce ultraviolet radiation, thereby lowering the temperature inside the vehicle, improving the efficiency of the air conditioner, and improving the riding comfort of the passengers in the car.

How about the car window film given by 4S shop?

Whether the 4S store gives you a car film or not depends on the price of the car you bought. In terms of probability, 100,000 is the watershed.

Don't demand too much for the quality of car films offered for cars under 100,000 yuan. Even if it is a brand-name film, its heat insulation and UV protection functions will be weaker, not to mention its lifespan. It is recommended to tear off the car film and re-apply it after two to three years.

For models above 100,000 yuan, the free car film is relatively good. For cars between 100,000 and 250,000 yuan or mid-to-high-end A-class cars, the free car film can be torn off and replaced after three to four years. The free car film for mid-to-high-end cars is usually not too bad, but it is limited to four to five years, and various indicators will also be reduced.

Inferior quality car films will not damage car glass. The problem with inferior quality car films is that they have poor UV protection and heat insulation. Another most important reason is that the formaldehyde content on the adhesive surface of the film may exceed the standard.

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Car glass films can be roughly divided into three categories: tinted films, metal films, and optical films. Tinted films have the lowest cost, and most of the films given by 4S stores belong to this category. This kind of film will fade over time, and the materials used are inferior, and it is easy to volatilize harmful gases after being exposed to the sun, which has a negative impact on the health of car owners.

Metal film uses metal particles splashed and evenly distributed in the film's interlayer. Because metal has the property of reflecting light, this film has good heat insulation. However, metal film also reflects radio waves, so applying metal film to the entire car may affect the use of the car's navigation device. Most mid-range glass films belong to this category.

Another type is optical film. This type of film is relatively high-end and generally relies on patented coating technology to reflect and superimpose the wavelengths of sunlight, thereby consuming and reducing the impact of sunlight. This type of film is relatively expensive and will not affect radio waves such as navigation.