Tag Archives: Flash

plastic molding | hdpe molding | vibratory tumbling

Why Plastic Molding Needs Nitrofreeze® Cryogenic Deflashing

Plastic molding can produce parts with flash, excess material that forms on part surfaces. During injection molding, molten plastic may escape through the mold’s parting line. Improper venting, low clamping pressure, low material viscosity, and uneven flow can also cause flash formation. In addition, injection molding flash sometimes occurs after the gate runners are removed. […]

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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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