Aug 25,2026
PPS Injection Molding Defects: Black Spots, Fiber Float and Warpage — Mechanisms and Fixes
Thanks to its excellent dimensional stability and flowability, PPS is widely used in precision injection-molded parts for the electronics and electrical industries. However, issues like black spots, discoloration, glass fiber blooming, and warpage or cracking are frequent. These defects not only compromise the appearance but also induce internal stresses, ultimately reducing the material's strength and service life.
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Aug 25,2026
Glass-Fiber-Reinforced Nylon (PA) Injection Molding: The 7 Defects and Their Root-Cause Fixes
Reinforced with glass fiber (GF), PA exhibits significantly enhanced strength, hardness, fatigue resistance, dimensional stability, and creep resistance. The dispersion of GF within the PA matrix and the interfacial bonding strength are crucial to its overall performance.
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