Two-shot injection molding

First we inject a hard material into the mold cavity, followed instantly by the second injection, often of a TPE (thermoplastic - elastomer).

Overmolding processes are used to create integrated seals, acoustic- damping elements, and non-slip impact and vibration-absorbing surfaces. These overmolded parts are used in a broad range of applications including automotive, material handling and audio systems. Other potential uses include packaging, electrical connectors, paper transport rollers in office equipment, plumbing, heating and air conditioning seals and gaskets, and soft grips on power tools.

Two-shot molding is also beneficial in packaging applications where a secondary color is desired to give products a unique appearance.

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