What factors can cause plastic products to fade over time?

Plastic products should be protected from sunlight during use, as is the case with all plastic products. If plastic products are used outdoors in strong sunlight,plastic manufacturing ， stabilizers such as UV absorbers need to be added to the injection molding raw materials to avoid the problem of easy fading of plastic products under strong light.


The stability of the dyes used in the production of plastic products determines the degree of fading of the products. Therefore, the high temperature resistance of the dye must be considered when selecting a colorant.


Some plastic products have poor acid and alkali resistance, such as molybdenum-chromium red, which is resistant to dilute acid, but is sensitive to alkali, and cadmium yellow is not acid-resistant. These two kinds of pigments and phenolic resin have a strong reducing effect on some colorants, which affects the resistance of colorants. Heat, weather, and colorfast.


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