Extrusion & Post
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PETG product dimensional change in hot water
Problembeschreibung
The product dimensions change after being soaked in 60-80°C hot water.
Ursachenanalyse
Insufficient annealing, internal stress released in hot water, low crystallinity causing high-temperature creep.
Lösung
Fully anneal; mark the use temperature limit; select heat-resistant grades when needed.
Wichtigste Erkenntnis
PETG hot water dimensional stability is limited.
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