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Pourquoi la voiture PPF jaunit-elle (2) ?

DATE: 2022-12-16


Voiture PPF jauneing, se réfère au film PPF transparent exposé à la lumière naturelle, aux ultraviolets, à la chaleur, à l'oxygène, à l'érosion chimique, à l'eau et ainsi de suite à l'environnement, ainsi qu'au processus de production inapproprié causé par le phénomène de couleur jaune de la voiture.

La deuxième possibilité de jaunissement du PPF transparent : la colle

The glue ofPPFhas strong exclusivity, and the glue specially developed for automobile paint and TPU substrate needs to be used. The color of glue shall be transparent, with stable weather resistance, and not easy to react with automobile paint and TPU substrate. Non directional development glue can never be used as automobile protective film. When it reacts with car paint and TPU substrate, it is very easy to cause TPU yellowing. If it has penetrated into TPU substrate, irreversible results will occur.

 

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Moins de possibilité de jaunissement : revêtement

TPU coating refers to a layer of transparent material applied on the surface of TPU substrate to enhance the performance ofsoutien-gorge de voiture clair, so that the automobile protective film can effectively cope with the complex climate and environment in nature. In daily use of the vehicle, dirt such as dust, rain, bird excrement, iron powder and so on adhere to the film surface and penetrate into the TPU substrate under the effect of time, which will make the film surface hoarse and lose luster, and also present a yellowing state from the naked eye, but in fact, this situation is mostly pseudo yellowing, not directly caused by the coating.