Sunscreen Window Films are classified into two types according to their different heat insulation methods: Endothermic heat-insulating film and Reflective Insulation Film.

Endothermic heat-insulating film: Thermal control performance is not as good as metal film. It incorporates an endothermic chemical in the gel to produce a seemingly excellent thermal insulation effect in a short period of time, but produces secondary radiation after saturation.

Reflective Insulation Film: A smart film produced using a magnetron sputtering process with spectral selection. It guarantees excellent thermal insulation performance while allowing visible light to be transmitted to the utmost extent. It is sputtered from precious metal multilayers and reflects rather than absorbs a large amount of heat, resulting in little secondary radiation.

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