Multi-Shot plastic overmolding is an injection molding process in which one thermoplastic is molded over another thermoplastic to form one part. The resulting product is an integrated assembly with a chemical bond between the two thermoplastics.

Thermoplastic elastomers (TPE) and thermoplastic polyurethanes (TPE) are commonly used for overmolding, but with the advancements in thermoplastics, a wide range of materials can be used.

Multi-Shot overmolding is an alternative to products with multiple and secondary operations in the manufacturing process, with additional benefits:

• Reduced Part Price and Labor Costs
• Increased Material Combinations For A Product
• Eliminates Secondary Operations
• Improved Product Reliability
• Improved Part Strength and Protection
• Design Flexibility