Insert Molding & Overmolding

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Overmolding is a challenging type of plastic manufacturing, but the results can improve functions and cosmetics of many products.

insert_molding.pngInsert molding and overmolding are two of our specialties, techniques mastered by only the most detail-oriented plastic injection molders. In the case of insert molding, we place an object in the mold and inject plastic around the component to form a mechanical bond. In the case of elastomeric overmolding of hard plastic, the bond is also chemical in nature as an elastomer attaches with the substrate material. In this way, a gripping or sealing surface can be added to a structural design.

Due to the often extreme pressures involved, this process requires close attention and control to prevent defects that are costly to correct. Overmolding is a challenging type of manufacturing, but the results can improve functions and cosmetics of many products.

Our capabilities are so well-known that we often receive leads from national material manufacturers. Examples of the items we insert or overmold include:
  • Filters
  • Electronic circuits and connectors
  • Elastomeric grips or seals
  • Threaded inserts
  • Custom metal components
  • Brackets and handles
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For detailed examples of our work, click here