Nylon Injection Molding Surface Defects: Root Causes & Solutions for Silver Streaks, Fiber Blooming & Gas Marks

Surface defects are among the most frustrating challenges in nylon injection molding. Silver streaks, fiber blooming, gas marks, and burn marks not only compromise aesthetics but can degrade mechanical strength. This article examines the formation mechanism of each defect and provides targeted process adjustments and mold modification recommendations.