How to choose the car film?

The inferior film is based on ordinary polyester film. Because of its loose internal structure, easy dyeing, low strength, inelastic, lack of toughness, no texture and easy wrinkling, it can not meet the basic requirements of car film security and theft prevention. The high-quality film adopts optical grade polyester film, which is mostly neutral in color, thick and smooth in hand, compact in structure and high in strength, so it has high safety and excellent anti-theft performance.

(2) clarity:

The inferior films are mostly dyed films or aluminized films. As mentioned above, the substrate used is an ordinary substrate, which can't reach the optical level at all. The function of heat insulation or shading is realized by heat absorber, dye or high reflection. Chemical dyes or aluminized components in the film greatly affect the clarity and perspective of the film. The visibility of black film is poor in rainy days or at night, which affects driving safety. High-quality films are made of high-quality optical substrates and produced by magnetron sputtering. The atomic structure is more dense.

(3) Smell:?

Inferior film usually uses inferior glue, which contains a large number of benzene and formaldehyde molecules, and will volatilize under sunlight, producing a strong pungent smell, while inferior glue is widely used because of its low cost. PSA glue is used for high-quality membrane, which is colorless and tasteless, and the cost is several times higher than that of inferior membrane. It is mainly used in a few industries such as food and medicine. Inferior film usually adopts dyeing process, so it contains a lot of chemical pigments. These colorful automobile films will undergo chemical decomposition under the irradiation of the sun, which may release toxic chemicals, seriously pollute the air inside the car and affect the health of drivers and passengers.

4 color:?

The inferior film is mainly dyed. The principle is similar to fabric dyeing. Therefore, these pigments are adsorbed on the surface of the film. Not only the color uniformity and stability are poor, but also the color difference is serious, and it is easier to fade and become blurred. High-quality films are made by magnetron sputtering. It absorbs precious and rare metal atoms such as gold, silver, nickel and titanium through a strong magnetic field. It is not only uniform in color, but also has a natural space metallic color. Not only the visual clarity is high, but also the air permeability is excellent. Very suitable for automobile glass.

(5) scratch resistance:?

There is no scratch-proof layer on the surface of inferior film, so it is easy to scratch when lifting the window or wiping it by hand. However, if you gently wipe 1 min with alcohol or gasoline, the inferior film will change color, while the surface of the high-quality film has a professional scratch-resistant layer. For example, there is a patented DUROGARD scratch-resistant layer on the surface of the canopy film, which is not only more scratch-resistant, but also difficult to scratch. After wiping with alcohol or gasoline, it will not change color.

(6) Technical parameters:?

Visible light transmittance, visible light reflectance, thermal insulation and ultraviolet blocking rate are commonly used performance indexes of automobile film at present. According to the optical principle, the basic relationship between the first three indexes is: the higher the light transmittance, the lower the heat insulation rate; The higher the reflectivity, the higher the thermal insulation rate, and the high reflectivity will bring great hidden dangers to the safety of automobile riding. Therefore, the three requirements of high transparency, high heat insulation and low reflection are the highest realm of automotive film technology today. Car owners must weigh and compare when choosing car film. You can't choose high reflective automobile film simply for high thermal insulation. Tuyue Com has a complete car film, including offline services.