Auto sunscreen shop owner shred himself, poor quality film can cause glass burst.
source: 2010-7-11 Shun Net - Ji'nan times
two months ago, Mr. Zhang spent 800 yuan at a solar membrane store for the love car to film, but the window glass suddenly burst. Because no traces of destruction were made, he suspected there was a problem with the membrane. When he looked for the sunscreen shop, the boss insisted that the glass burst had nothing to do with the membrane and refused to pay. Is the
windows popping up with the sun film? What is the secret of the industry? Wang Jianing, the general manager of a car decoration in Shandong, has revealed some of the industries to reporters. The
glass popping film may be the "culprit"
Wang Jianing said that many solar films may appear in the case of glass popping after one or two months. This is because, poor quality membrane by absorption heat insulation, when the heat absorption to saturation, the two reflection does not work, heat accumulated on the glass surface, so it is very easy to cause glass burst. In fact, many operators in Ji'nan do not know much about the characteristics of the sold solar panels, so when consumers are looking for glass after they are stuck, they will not admit it. "High quality solar film heat insulation does not depend on the heat absorbant in the glue, but it is reflected by the evenly distributed metal particles or ceramic particles, so the time of the film sticker is long, the time of exposure to the sun is longer, and the window glass will not burst." Wang Jianing said.
prices nearly 1000 yuan, price only 40 yuan
before, there was a media burst, because of technical problems, a sticker shop for customers has posted seven times, but still rich. Is the film really profiteering?
the cost of solar film is only 40% of the price of car stickers, and the prices of different processes are different from those of different people. Wang Jianing said.
non gray magnetron sputtering film is not true
what is a good film? A good film is not clear from the outside, and it is very clear from the outside, and especially at night, the visual effect is very good. Some sticker stores will leave a triangle on both sides of the front side of the car window for the customer's film. In order to make the line of sight clearer, this just shows that the film is poor in light transmittance. If a poor quality film is attached, it will not only be bad for the car, but will also do harm to the health of the occupant.
Wang Jianing gave the reporter an experiment. He took out three pieces of different materials of solar film leftovers, so that reporters first touch with their hands, feel the difference. Then, tear off the cellophane on the three leftovers, smear the tar cleaner and wipe it with paper. As a result, one of the leftovers began to fade and the other two did not change. Wang Jianing explained that the color of the film is commonly known as the poor quality membrane, it is a kind of dyed membrane, containing a large amount of formaldehyde, if the window attached to the membrane, the health of the body is very harmful. In the other two kinds of non faded solar films, there is one kind of deep dyed membrane, which is a layer of film on the surface of the dye, which is most in the market. The large brand has a strict requirement for the chemical composition in this deep layer, but some low-grade solar membranes are still high in formaldehyde content. Another non fading film is a relatively high quality magnetron sputtering film, which is further divided into sputtered metal components and sputtered ceramic components. The magnetron sputtering film is the primary color film, which is the most environmentally friendly compared to the shallow and deep dyed films. But the film is grey only. "If a film store sells gold, green or blue magnetron sputtering films, it must be false."
it is said that under the high power microscope, the metal distribution in the deep staining film is disorderly, indicating that the transmittance is not good. The magnetron sputtering film is arranged orderly under the high power microscope, indicating good transmittance.
Wang Jianing said the solar film on the market is pyramid. Before 2009, dyed film (commonly known as "tea paper") occupied a large market share, the highest market share of magnetron sputtered membrane was the smallest, and the deep dyeing film was in the middle. After 2010, the share of deep dyeing film increased, and the dyed film was eliminated by the market, and the share decreased.