Molding Process
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PETG copolyester insufficient oil resistance
Fenómeno do problema
PETG products swell, stress crack or suffer performance decline when in contact with oils and fats.
Análise das causas
Oil and fat molecules penetrate into the PETG matrix causing swelling and stress; PETG has limited resistance to oils and fats.
Solução
Evaluate the use environment and select a suitable material; for high oil resistance requirements, PCTG or PCTA can be selected.
Conclusão principal
PETG oil resistance is limited and needs evaluation according to the application environment.
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