How to identify inferior membranes? How to identify inferior car films

Identify the advantages and disadvantages of explosion-proof films:

1. Vision. The first thing is, of course, to observe with the eyes, through visual experience, friends can first have a preliminary understanding and understanding of the perspective and clarity of the film, the clarity of the high-quality explosion-proof film can be as high as 90% or more, and regardless of the color shade, the perspective performance is good, and it can also maintain a good line of sight at night and in rainy days. The inferior film uses an ordinary dyeing process, which is insulated by color, so the color is dark, and it feels very blurry when looking out from the car.

2. Tactile. In order to reduce costs, the materials used in inferior films are soft and thin at the same time, lack sufficient toughness, and are easy to wrinkle; In contrast, a high-quality film feels thick and smooth to the touch; Therefore, when friends buy, they touch the real thing with their hands and feel the texture of the film.

3. Sense of smell. Judging the quality of explosion-proof film with the sense of smell is also a direct and effective method. The residual solvent of the adhesive layer of the inferior film has a high content of benzene and a peculiar smell, which will seriously endanger the health of the owner, so it is best for friends to stay away from the odorous film.

4. Rub with alcohol and gasoline. Because the inferior film is a glue dyeing film, the fading phenomenon can be seen by wiping the adhesive layer after removing the protective layer of the film. In addition, you can also uncover the transparent layer on the back of the car film and scratch it with a hard object, and the discoloration of the inferior film is more serious and there are scratches.

5. Test the thermal insulation effect, use high-power incandescent lamps and other simulated solar light sources to test the ability of the film to block heat, the inferior film has a low thermal insulation rate, it is easy to wrinkle, bend and deform, and it will feel very stuffy when sitting in the car, and at the same time, it has a very poor ultraviolet insulation effect, and it cannot protect the items in the car and the passengers.

Hello! 1. Look 2, smell 3, listen 4, cut.

Look: Mainly look at the clarity of the membrane. Because the national standard requires that the light transmittance of the automobile front windshield film must exceed 70%;

Smell: Peel off the protective layer of the film and smell it. The quality of the adhesive used for the dyeing film in the inferior film is poor, and there will be a pungent smell when the protective layer is uncovered, and the content of toxic substances such as formaldehyde and benzene in the adhesive layer is high.

Listening: Listen to the sound by shaking the membrane with your hand. The high-quality film will emit a metallic sound, crisp and powerful, and the sound is pleasant and textured; The sound emitted by the inferior film is as dull and weak as plastic paper;

Cut: Feel to the touch. The high-quality metal film feels thick and smooth, and the surface is hardened, so it will not be scratched; The inferior film feels thin and brittle, has no elasticity, is easy to wrinkle, and has poor wear resistance, especially the material of the inferior heat absorbing film is thicker, about twice as thick as the general metal film!

Qingdao Tianyi Jinshang Xiaosu).

When the scorching sun is in the sky, the hot summer is difficult, and the quantum film for the car has recently become a popular fashion for car film in Shanghai. Consumers need to do some simple identification when choosing car film to distinguish what is really high-quality film. Here are the top six tips that industry experts tell us.

First, the feel. The inferior film uses ordinary polyester film as the base material, which has no elasticity, lacks toughness, has no texture, is easy to wrinkle, and cannot meet the basic requirements of safety and explosion-proof of automotive film. Currently, all substrates for Bekaert quantum membranes and Šureja automotive membranes come from DuPont.

It is made of optical grade polyester film, which is thick and smooth to the touch, dense in structure and high in strength, so it has high safety and excellent explosion-proof performance.

Second, color. Inferior film is mainly dyed by the dyeing process, and the principle is similar to that of cloth dyeing, which is more likely to fade and become blurred. The high-quality film is manufactured by magnetron sputtering process, which adsorbs precious and rare space metal atoms such as gold, silver, nickel and titanium through a strong magnetic field, which not only has uniform color, but also naturally has the color of space metal, high visual clarity and excellent permeability.

3. Clarity.

Clarity is determined by the substrate and manufacturing process from which the film is made. The solar film produced using the world's most advanced magnetron sputtering process guarantees extremely high clarity. The reaction of many inferior films in reality is that there are wavy lines after the car stickers pass through the film, and the things are not seen clearly, and the eyes are dazzy when driving, which affects the safety.

Fourth, anti-scratch.

There is no anti-scratch layer on the surface of the inferior film, so when lifting the window, or wiping it by hand, it is easy to scratch and decolorize, while the surface of the high-quality film has a professional anti-scratch layer, which is not only more resistant to scratches, not easy to scratch, and will not appear decolorized.

5. Original factory warranty.

At present, China's automotive film market is mixed, and many OEM films are also swaggering and cheating under the banner of original films. However, only the warranty card presented by the manufacturer is the true mark of the original film.

6. Technical parameters.

According to the optical principle, the higher the light transmittance, the lower the thermal insulation rate; The higher the reflectivity, the higher the thermal insulation. The high reflectivity will bring great hidden dangers to the safety of car driving. Therefore, the three requirements of high light transmittance, high heat insulation and low reflection are the highest level of today's automotive film technology.

Therefore, when choosing a car film, you must balance and compare, and you can't choose high reflectivity for high heat insulation.

As an internationally recognized leader in the automotive film industry, in 1995, Bekaert Special Coating invented a two-dimensional structure of metal atomic film, and through the mutual extinction of a variety of metal film layers, the reflectivity of the automotive film was greatly reduced, thus achieving a new generation of high light transmittance, high heat insulation, and low reflection of the world's top automotive film. The product is registered as a "quantum film" in the United States. Bekaert provides consumers with a 10-year manufacturer's warranty, which is currently the longest original warranty among international brands of automotive films.

The price of the whole car sticker Bekaert car film is generally about two or three thousand yuan, and there are hot-selling varieties such as crystal 75, diamond 70, quantum 19, quantum 37 and so on. （

The first is hope. You can ask the dealer to cut a small piece of film down, take a picture of the bright place, the high definition is a good film, and the inferior film looks like a foggy feeling.

The second is smelling. After tearing off the protective layer, the inferior film smells pungent, while the high-grade film uses environmentally friendly glue, which basically has no taste, or has a faint glue smell.

The third is touching. The high-grade film has a thick and smooth feeling to the touch, while the low-quality film is very soft and thin, lacks sufficient toughness, and is easy to wrinkle.

The fourth is rubbing. You can bring a little alcohol or gasoline and wipe the surface of the film. Inferior film is easy to fade when rubbed, while high-grade film is not easy to fade.