[China Glass Network] As the weather gradually turned hot, many friends who bought a new car began to think about giving the car a film. However, there are many misunderstandings in the front glass film, and how to avoid it?
Misunderstanding 1: The color depth determines the thermal insulation performance
Many friends who are going to give a car foil believe that the deeper the color of the film, the better the insulation performance. In fact, the thermal insulation properties of the film depend on the infrared blocking rate and the shading rate. Since the heat energy in sunlight comes from visible light and infrared rays, the darker the color, the more insulated the film is.
Myth 2: Front glass does not need to be protected
For some friends who often run at high speed, it is very common to encounter sand and stone splash. In most cases, this is only known to cause damage to the paint, but if it hits the front windshield, the consequences will often be more serious. The actual test results show that when the vehicle speed exceeds 70km/h, the front windshield will be 100% penetrated when it encounters only 500g of hard object. The film-coated glass can effectively avoid the damage caused by the cracking of the glass, and can also block the hard object from penetrating the glass into the vehicle.
Misunderstanding 3: The transmittance of the front film is up to 70%
According to the national standard GB7258-2012, the light transmittance of the front windshield of the automobile should not be lower than 70%, and the light transmittance of the front glass of the ordinary automobile is controlled at about 75%. Therefore, considering the influence of the front film on the light transmittance, the front film must achieve a light transmittance of 90% lower, in order to avoid the front light transmittance of the film after the film is less than 70%.
Myth 4: Sticking a safety film may affect accident escape
The role of the safety film is to increase the penetration resistance of the glass. Therefore, many people think that the safety film is not conducive to escape in the car. In fact, the safety film itself does not have a strong anti-penetration index. The individual film can usually be punctured with a ballpoint pen. When we slam the glass, the security film attached to the inside is easily pierced and does not affect. The escape of the personnel in the car at the time of the accident.
Myth 5: Ordinary film can also prevent cockroaches
There is a type of film that acts as a tamper-proof and even bullet-proof type. This type of film is called a security film. However, for ordinary membranes, it only prevents the debris from splashing after the glass is broken, and it does not have the function of a safety membrane.
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