Engineer inspecting a glossy injection molded plastic part under bright workshop lighting
Blogs

Silver Streaks in Injection Molding: Diagnosing the Real Cause Before You Scrap a Batch

Silver streaks look identical whether caused by moisture, trapped air, thermal degradation, or contamination — but the fixes aren’t interchangeable. This guide gives a field diagnostic sequence, explains when streaks compromise mechanical strength, and lists the supplier drying and residence-time controls worth auditing.