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