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Molding Defects | Mold Flash

Molding Defects and How to Fix Them: Understanding Mold Flash

Molding defects reduce the surface quality of rubber and plastic parts. The causes include problems with flow lines, sink marks, vacuum voids, and surface delamination. Molding defects are also caused by short shots, burn marks, jetting, and warping. Flash or flashing, the formation of excess plastic or rubber on the surface of molded parts, is […]

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cryogenic deflashing

Cryogenic Deflashing for Molded Rubber Parts

Cryogenic deflashing for molded rubber parts removes mold flash from hard-to-reach areas such as cross-holes, blind holes, and other difficult geometries. During the rubber molding process, flash or flashing can occur anywhere that metal meets metal – especially as mold tooling wears. Rubber molders can remove these surface defects through hand or manual deflashing, but […]

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