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