Simulation Moldflow

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Streak mark-white

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    Also appear as silver streaks.

    White streak marks are caused by:

    • Moisture: streaking occurs opposite the flow direction due to a high residual moisture content; drying the material properly will remove this defect.
    • Air is trapped and cannot escape while the mold is filling; the air is drawn to the surface and stretched in the direction of the flow causing streak marks.