Tungsten acid may be applied for heat insulating window glass, which provides for better user comfort and well-being and improves energy efficiency. Nano tungsten acid plays a role of heat insulation film on the window glass of vehicles. The heat insulating film provides over 99% UV blockage. In cars, the range of light transmission for this type of window glass is 50-60 times darker than a typical sunroof to twice as clear as an ordinary sunroof.
Commercialization of heat insulating window glass is accelerating in the automotive industry for reasons including safety, comfort, fuel economy, and design. The heat insulating film on automotive side and rear windows and sunroofs offer many benefits to passengers in the vehicle.
Also, the heat insulating window glass reduce unwanted light and glare, which allows users to maintain their views of the outside while reducing glare on displays and video screens, or tint the windows for additional privacy. The heat insulating automotive glass also minimizes heat build-up inside the vehicle because of their ability to block solar heat gain. Other advantages include reduction of carbon emissions and the elimination of a need for expensive window dressings.
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