Molding Process
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PETG copolyester insufficient oil resistance
Fenómeno del problema
PETG products swell, stress crack or suffer performance decline when in contact with oils and fats.
Análisis de la causa
Oil and fat molecules penetrate into the PETG matrix causing swelling and stress; PETG has limited resistance to oils and fats.
Solución
Evaluate the use environment and select a suitable material; for high oil resistance requirements, PCTG or PCTA can be selected.
Conclusión clave
PETG oil resistance is limited and needs evaluation according to the application environment.
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