Manufacturing & Prototyping

Fundamentals of Molding: Cosmetic Defects

Identifying potential cosmetic flaws like sink, knit lines, flash, blush, and other issues early in the injection molding design process not only improves the appearance of your parts, but their overall moldability too. A good first step is our automated design feedback that comes free with every ProtoQuote. It highlights issues like missing draft or thick wall sections, which can lead to cosmetic flaws. Upload a part today at for a quote within hours.