Injection Molding
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PETG injection molded part surface scratches
Fenómeno del problema
PETG transparent product surfaces are prone to scratches, and transparency and appearance are affected.
Análisis de la causa
PETG surface hardness is low (pencil hardness HB-F), contact with hard objects during handling, and scratching during mold opening/closing and ejection.
Solución
Use UV-curable hard coating to increase hardness; optimize mold opening/closing and demolding actions; use protective film for product packaging.
Conclusión clave
PETG poor surface scratch resistance is its application shortcoming, requiring coating protection.
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