Injection Molding
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HDPE injection molded product color fading
Fenómeno do problema
Color masterbatch colored HDPE parts have uneven color or fading.
Análise das causas
Uneven color masterbatch dispersion, insufficient temperature resistance (high temperature discoloration), or insufficient light fastness level.
Solução
①Increase back pressure for dispersion; ②select temperature-resistant color masterbatch; ③select light-fast color masterbatch for outdoor parts; ④premix uniformly.
Conclusão principal
For color fading, check the three properties: dispersion, temperature resistance, light fastness.
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