Color change, a troublesome issue in plastic injection molding, directly affects product appearance and market acceptance. It refers to the discrepancy between the surface color of molded parts and the desired color. This phenomenon can be triggered by multiple factors, encompassing injection molding machines, plastic molds, molding processes, and raw materials.

Cracks, narrow fissures appearing on injection-molded parts, can stem from issues with the injection molding machine, mold, molding process, and raw materials.