Tag Archives: Flash

Molding Defects | Mold Flash

Five Reasons for Flash on Plastic and Rubber Parts

What Is Residual Mold Flash? Flash is excess plastic or rubber material that forms on the surface of molded parts. Flash, or flashing, affects the part’s surface finish and may also interfere with sealing. Flash is usually a cosmetic defect, but molders want to avoid the appearance of thin, unwanted lines that can suggest poor […]

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