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Automotive film and architectural film are both glass films basically made of PET but with different structures. The two films are slightly distinct while enjoy some good performances like being safe, explosion-proof and heat-insulating. Their major differences are as follows.
1.Their production processes are different. As is often the case, architectural film is made by vacuum aluminizing process for fixed buildings due to its adaptability in the sun with its high reflection of visible light and solar energy. However, such film isn't suitable for automobiles because the strong reflected light form the side window glasses will affect the observation of the rearview mirror.
2, Their adhesives are different with ordinary HPR for automotive films and special CDF, more adhesive, for most architectural films. Thanks to the different adhesives, the architectural film lasts for 10-20 years while the automotive film can only last 3-5 years or so. Ordinary automotive films attached to the architectural glasses, it'll lead to HPR corroding, film shedding, color fading and cracking, thus greatly affecting the exterior of the building.
3, Their thickness is different. The thickness of the architectural films ranges from 2 mil to 16 mil, while the automotive films from 0.8mil to 1.5mil.
4, Their metal content is different. It's permitted that the content of chrome, nickel and titanium in automotive films can reach the maximum 5% and the architectural films 2.5% for environmental and ecological protection. The reason why the metal content in architectural films must be much lower than that in automotive films is that people stays in the buildings much longer than in cars which reduces the harm to adult drivers. If staying over a certain length of time, the radiation of raw materials in the architectural films will definitely influence the health of pregnant women, infants, the elderly, the sick, the weak and the physically challenged people. Consequently, it's indispensable to maintain the metal contend in the architectural films in a low lever for environmental and ecological protection.
5, What absorbs ultraviolet in the two films is different with vacuum interlayer, which contains the rare element plutonium and can absorb harmful spectra and adjust it, in the architectural films.