This paper discusses a new technology for control of solar heat gain in automobiles. Described will be a non-metallic, all-polymeric film, which reflects solar infrared, has high visible light transmission, and an appearance that is clear and colorless.
The film is designed to be used in combination with tinted glass, as a component in an overall glazing design. Measured solar control levels are shown to be competitive with metallised film technologies.
Prototype windshields and body glass units have been successfully made in a standard autoclave cycle. Constructions were made by using the film as the center component in a five layer glass/pvb/film/pvb/glass laminate. The results of durability, performance, and specification tests are encouraging and will be discussed.