[China Glass Network] Judging whether the thermal insulation rate of an automobile film is high or low, whether the data is true or not, the automobile film is better compared with the shielding coefficient and the heat insulation rate of the automobile film. Because there is an inverse relationship between the thermal insulation rate of the automobile film and the shielding coefficient of the automobile film. That is to say, the higher the thermal insulation rate of the automobile film, the lower the shielding coefficient of the automobile film.

Generally, if the shielding factor of an automobile film is 0.5, its heat insulation rate should be about 50%, not 60%, or even 80%, 90%. For example, an automotive film has an infrared reflectance of 80% and a masking factor of 0.53, so its thermal insulation rate should be a little more than 55%. Those automotive films and automotive films that claim to have a visible light transmittance of more than 70% and a thermal insulation rate of 60%, 80%, or even 90% cannot be achieved at the current state of the art. This kind of automobile film is probably only the ideal that people are pursuing, but in reality, this kind of automobile film does not exist.

Therefore, when selecting the automobile film, the user should not unilaterally pursue the high heat insulation rate of the automobile film, and ignore the shielding coefficient. If the two are combined, it can accurately judge whether the heat insulation rate is accurate or not. Is there any data mixing with water?

At present, many automotive films on the market are said to have a high visible light transmittance, and the automobile film has an insulation ratio of 80% and 90%, but the shielding coefficient of the automobile film is not marked. Be careful when car film.

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