Injection Molding Defects-Moisture Streaks/Splay Marks

Injection Molding Defects-Moisture Streaks/Splay Marks Appearance Usually oblong, silvery surface streaks which are open in the shapre of a U counter to the direction of flow. The material pumped out of the cylinder is foamed and shows blisters on the injection molding parts surface. Cause Moisture content too high; water vapor is produced during melting…