Like Dragon Film, Weigu also belongs to the American chemical giant Eastman. Compared with dragon film, Weigu's magnetron sputtering film is more cost-effective.
 
The Weigu brand was officially established in 1991, and its manufacturer of automotive window film is one of the few Shaohua technology in the industry with magnetron sputtering technology. Shaohua Technology has long been engaged in the development and production of spectrally selective films required for military and space technology, and set up a special production line for Weigu heat insulation film in Arizona in 1998. In 2011, Shaohua Technology, together with Weigu, became a brand of Eastman.
 
Shaohua technology is a professional spectral selective film developer, its products are mainly used in laminated glass, window film, insulating glass and other products, XIR spectral selection technology was originally the research results of the Massachusetts Institute of Technology, and later became the core technology of Shaohua technology, the technology with excellent and advanced technology - the visible light in the sunlight is highly passed, and selectively blocks almost all harmful infrared and ultraviolet radiation, by the world's authoritative science and technology magazine "Popular Science" as one of the top 100 inventions in the millennium, Also receiving this award are air conditioning systems, Internet access, computers, etc. Due to the gradual implementation of Weigu products, XIR has been selected by European manufacturers of famous cars to be used for thermal insulation on glass windows.
 
Car film is very popular in China, and most car owners will apply window film after buying a car. In fact, not all vehicles need to be filmed, and some high-end models are equipped with XIR laminated glass in the front or side and rear gears, which have good light transmittance and heat insulation effect, so there is no need to apply film at all. For models equipped with dark side tailgates, it is not recommended to apply film, because dark color reduces the transmittance of visible light, and most tempered glass has a certain thermal insulation effect on infrared rays, and it is difficult to improve the further thermal insulation effect through filming. Before applying the film, the user should first understand the basic information of the vehicle glass.
 
For the front gear, the best products are V-KOOL 70 and V-KOOL 70, which are also the only front windshield films in China's online channels. According to official information from V-KOOL, V-KOOL 70 has a visible light transmittance of 70% and a solar blocking rate of 36%, while V-KOOL 70, as an upgraded version of V-KOOL 70, not only has a visible light transmittance of up to 75%, but also a solar blocking rate of 53%. In terms of matching with the side backwindshield, the solar thermal insulation rate of the side backsplash glass film is generally more than 40%, and users who pursue privacy are recommended to choose products with a visible light transmittance of less than 25%.