Both building insulation film and automobile insulation film are glass films. The basic substrate is PET. The structure and application process are basically the same. They have the effects of safety, explosion protection and heat insulation, but the two cannot be used mutually. What are the differences between the two?
Building insulation film
Definition
The main manifestation of building insulation film is glass curtain wall or large-area glass window. It can not only beautify the overall appearance of the building, but also play a great role in the indoor landscape effect and energy saving. When the glass is impacted or broken by natural factors, it will not fly and splash and cause personal or object damage.
Car heat insulation film, as the name implies, refers to a kind of film used on the surface of car glass. Play the effect of heat insulation and explosion protection.
Material and performance
Different thickness
The building insulation film is usually between 2mil and 7mil, and the domestic automobile insulation film is usually only between 0.8mil and 1.5mil.
Different gel quality
The car heat insulation film uses ordinary back glue (HPR), while the building heat insulation film is mostly clear raw glue (CDF), and the safety film uses a special glue with stronger adhesion. Due to the different properties, the car heat insulation The service life of the membrane is about 3-5 years, while the normal use of building insulation membrane is 10-20 years.
Different metal content requirements
The content of cadmium, nickel, and titanium in car heat insulation film should not exceed 5%, and the content of building heat insulation film should not exceed 2.5%. Only under this requirement can the overall environmental protection and ecology requirements be met, because the drivers of cars are generally adults and healthy people, and it is impossible for people. Living in a car for a long time, and building rooms include pregnant women, babies, the elderly, the weak, and the disabled. The radiation of rare metals has a certain Follow strict ecological and environmental protection standards.
Production process
Usually, because the building is fixed, the film produced by the vacuum aluminizing process tends to have high visible light reflection and high reflection of solar energy at the same time, so as to obtain a higher solar control ability.
Cars are not suitable for attaching highly reflective architectural film, because this will cause strong reflections on the side window glass and affect the observation of the rear-view mirror, and there will also be strong dazzling light that will affect the driving of drivers.
Cost calculation method
The car heat insulation film is calculated based on the front glass and the surrounding door glass installation positions.
The building insulation film is measured in square meters, and the loss during the construction process is considered to calculate the final quotation.
Installation operation process
The installation of building insulation film is generally flat glass; the installation space is also relatively large.
However, the installation of the car heat insulation film needs to be completed in a small space, and the car glass has a curvature, and the film needs to be baked and qualitative in advance.
With the rapid development of science and technology, innovative membrane materials have sprung up, appearing more and more in people's lives. Such as: photoelectric film material, photovoltaic film material, battery film material, water treatment film, window film, protective film, flame retardant film, high water vapor barrier, negative ion release film, inorganic nano-added functional film and other fields.