[China Glass Net] The film adhered to the surface of the automobile glass is commonly known as the car film and the explosion-proof film. It is called the solar film at the beginning. There are heat-insulating sunscreen, UV-blocking, safety and explosion-proof, creating a private space (you know...), improving the beauty and so on. Here, Yezi will not elaborate, and now most car owners are no longer entangled. The film is not a film, and the glass film has become a must-have decoration for new cars.
Car glass film grade
At present, the grades of automotive films on the market can be roughly divided into four types: the former is a "dye film", the second is a "semi-reflective paper", and the third is a metal-coated infrared-reflective film. The fourth type is an explosion-proof thermal insulation film that is insulated by a non-metallic layer.
"stained film"
The main component is the dyed ordinary chemical film, which is neither insulated nor UV-proof or explosion-proof. At the same time, its light-shielding property is easy to cause traffic accidents when the driver of the car is driving. It will fade slowly after a long time, and will emit odor after being heated. , endangering health.
"Semi-reflective paper"
The heat insulation rate of the film is about 20% to 30%, and after one or two years of use, an oxidation reaction occurs, thereby causing deterioration.
Metal-coated, infrared-resistant, explosion-proof film
With anti-wear, semi-reflective and explosion-proof functions, the ultra-thin metal coating can selectively reflect the infrared rays in the sunlight, thus having the function of heat insulation, and the heat insulation rate can reach more than 50%. This is the main type of high-grade explosion-proof thermal insulation film.
Explosion-proof thermal insulation film with non-metallic layer for thermal insulation
At present, the type of high-tech thermal insulation film uses a polymer material as a heat insulating layer. This kind of heat-insulating film has extremely high light transmittance, strong insulation effect against glare, and good heat insulation rate, which is not easy to cause reflection of the front windshield, and the driver's driving safety is improved a lot.
How to buy
1. Smell: There is no pungent smell. When you purchase the explosion-proof membrane, you can tear off the sticker and smell the chemical film with a pungent odor. Regular manufacturers of explosion-proof membranes will not have a pungent chemical odor.
2, touch: the hand can not be very soft. The explosion-proof membrane produced by the factory has high flexibility, while the inferior explosion-proof membrane has a soft hand. A high-quality explosion-proof membrane surface will have a protective layer to prevent scratching the explosion-proof membrane during normal lifting of the window. You can use your fingers to gently scratch the surface of the explosion-proof membrane to check for a scratch-resistant protective layer.
3, see: light transmission, heat insulation, quality assurance card. Good explosion-proof membrane, there is no blurring feeling from the inside of the car.
In addition, the front window and the front windshield should choose an explosion-proof membrane with good transparency and no influence on the line of sight. Generally, the transmittance is above 85%.
The rear windmill film not only has to ensure a good view, but also can reduce the strong glare caused by the rear headlights, ensuring the sight of the night driving.
Insulation performance is an important indicator of the quality of the explosion-proof membrane. A good explosion-proof membrane can effectively block more than 95% of ultraviolet rays and block infrared rays by 50% to 80%.
The method of judging is very simple. Just use the film-coated glass to block the sun, and use your face or hand to feel the heat of the glass. Or use a high-power incandescent lamp to simulate a solar light source.
Some inferior explosion-proof membrane colors are made of glue-dyed film. The owner can tear off the release paper of the explosion-proof membrane and rub it on the ground to see if there is any color falling off. The genuine product will not fade. The explosion-proof membrane produced by regular manufacturers has a warranty card. At the same time, the back of the good explosion-proof membrane is usually printed with anti-counterfeiting marks.
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