Quality inspector examining an injection molded plastic part with a visible defect under bright light
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Plastic Molding Defects and Remedies: When to Adjust the Process and When to Fix the Mold

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Most defects aren’t hard to name — the real question is whether a process setting can fix them or the mold needs steel. This guide covers that decision, AQL critical/major/minor grading with real test methods, and how DOE and cavity pressure monitoring stop a fix from failing on the next resin lot.