Molding Process
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PETG transparent part optical distortion
Fenómeno del problema
When viewing objects through PETG products, distortion and deformation occur (optical distortion).
Análisis de la causa
The product surface is uneven or thickness non-uniform causing uneven light refraction, internal stress causes local refractive index changes.
Solución
Optimize the flatness of the injection molded surface; uniform wall thickness; fully anneal to reduce internal stress.
Conclusión clave
PETG optical distortion is a serious defect for transparent packaging.
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