& ltbr & gt Some basic matters that must be paid attention to when laminating: authorization of laminating shop, filling in clear and perfect quality assurance card, asking for official invoice, etc. At the same time, it is necessary to visually check the quality of the diaphragm: no matter the color depth, it is very clear, the color is very pure, and the appearance after pasting is very pleasing to the eye.
& ltbr & gt How to identify the true and false membrane;
& ltbr & gt 1. Clarity: No matter the color depth of the film, high-quality film should be able to clearly see objects beyond 6 meters at night, while inferior film will feel foggy.
& ltbr & gt2. Handfeel: The genuine film feels thick and slippery, while the inferior film feels thin and brittle, which is easy to scratch.
& ltbr & gt3. Color: The pigment of high-quality film is evenly blended into the film, which is durable and not easy to change color, and will not change color when scraped off by a scraper during pasting. The color of the inferior film is in the adhesive used for bonding. After the lining of the car film is torn, it will fade when scratched with nails.
& ltbr & gt4. Bubble: When the plastic lining of car film is torn and reassembled, the inferior film will bubble, while the high-quality film will be intact after reassembly.
& ltbr & gt5. Thermal insulation: Thermal insulation is one of the important indicators of glass protective film, which is difficult to distinguish with the naked eye and hand. It can be compared by a simple test method: put a piece of glass stuck on the car film on the iodine tungsten lamp, and the high-quality film is the one that can't touch a trace of heat by hand.
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& ltbr & gt6。 Sticking takes time, because the glass is curved, so it takes time to spread the film on the window and bake it again. The better the movie, the worse it is. It takes at least 3 hours to stick the film of famous brands to the front block and the body at the same time, while the fake film is easier to bake and stick faster.
& ltbr & gt Another point is that the real film is made of optical glue, and there is glue on the film. The so-called smooth glue means that one side of the real film attached to your window is smooth, while the other side of the fake film is sticky. However, this method is not easy to practice. First, the car beauty shop will prepare some scraps of real film. If you want to check them, he will take them away. Finally, it is difficult to tell whether it is fake or not, and some are mixed.
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& ltbr & gt Johnson & Johnson has good cost performance, hard film texture and good scratch resistance. But it's hard to say. At present, the actual transaction price in the market is around 2000.