Due to their fully automated production, dual-color injection molding machines are better suited for high-volume part production, while also enabling precise overmolding and delivering a refined appearance.

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Two-shot injection molding (also known as dual-shot or multi-shot molding) is a process in which two different materials or colors are injected into one mold, one after the other, during a single cycle.

By injecting materials in two stages within the same mold, two-shot molding enables the creation of multi-color and multi-material components with precision and durability. Compared to traditional single-color injection molding and secondary assembly, it offers superior aesthetics, better performance, and higher production efficiency.

Overmolding is a broad injection molding process that involves covering a base material with another material (such as plastic or elastomer) to produce a finished part. This process can be completed using either single-mold methods (such as insert molding) or multi-step approaches (such as multi-shot molding).

Two-shot injection molding is a specialized type of Overmolding that involves injecting two different materials into a single mold in two stages. It requires dedicated two-shot injection molding machines and rotary/sliding molds to achieve seamless integration and high-precision parts. While two-shot injection molding falls under the umbrella of Overmolding, the two are not identical: Overmolding is often used for simple encapsulation, whereas two-shot injection molding is ideal for more complex, structurally integrated components.