Short Shot Defects

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TPU Thick‑Wall Molding: Distinguishing Shrinkage Sink Marks from Short‑Shot Defects Sep 07 , 2026
Thick-wall TPU injection-molded parts (wall thickness ≥10 mm) often suffer from surface dents or depressions. It is easy to confuse shrinkage‑induced sink marks with short‑shot (incomplete filling) defects. Although they look similar to the naked eye, their root causes, diagnostic logic, and corrective measures are completely different. Misdiagnosis leads to wasted time and incorrect machine adjus...

Tags : TPU Thick‑Wall Molding Shrinkage Sink Marks Short‑Shot Defects

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