Does automotive film have heat insulation effect?

In fact, there are two types of automotive insulation films, metal films and dyed films. Let's take a look at the thermal insulation principle of metal films. The metal film contains multiple metal layers. It uses the principle of metal reflection to insulate heat. Through the metal layer in the film layer, the infrared rays carrying heat in the sunlight are selectively reflected to achieve the purpose of long-term heat insulation. This kind of metal heat insulation film has good heat insulation effect. In fact, there are two types of automotive insulation films, metal films and dyed films. Let’s take a look at the thermal insulation principle of metal films. The metal film contains multiple metal layers. It uses the principle of metal reflection to insulate heat. Through the metal layer in the film layer, the infrared rays carrying heat in the sunlight are selectively reflected to achieve the purpose of long-term heat insulation. This kind of metal heat insulation film has good heat insulation effect.
Whether it is a metal film or an endothermic film, we need to test the thermal insulation performance of the film. The thermal insulation performance of the film is mainly determined by its high infrared blocking rate. We can test with an infrared power meter. The ratio of the infrared light intensity after being blocked by the film to the original light intensity is the infrared blocking rate of the measured film