Overmolding Injection Molding

Plastic OvermoldingOvermolding is the precision plastic injection molding process where one material is molded over a second material.

In overmolding, proper material selection is critical – the two plastics do not have to be the same, but they must be compatible.

For example: you should not plan on injection molding the second material onto the first material if the second material will melt or distort the first material. One should not deform the other where it matters.

If the proper materials have been chosen, the two materials bond together chemically and mechanically.  This process yields a strong finished piece with a long life.

In some cases, overmolding injection molding can be less expensive than post-molding fabrication.

Overmolding Resin

Our staff works with a wide range of engineered resins and can help you select the best resins and molding process to deliver consistent, reliable product quality.

See below for a few of the overmolding resin materials we work with:

  • Acetal
  • Delrin
  • Glass Filled Nylon
  • HDPE
  • Polycarbonate
  • PVC
  • TPE
  • Plus More

Overmolding Applications

At PMC, our engineers do everything from overmolding electronics to overmolding medical devices. We have years of experience helping customers optimize the best solution for their specific product.

See below for some of the overmolding services we provide for particular applications:

  • Insert Molding and Overmolding ServicesElectronics
  • Automotive Parts
  • Medical Devices
  • PCB (Printed Circuit Boards)
  • Flex PCB (Printed Circuit Boards)
  • RFID (Radio Frequency Identification Tags)
  • Defense/Military Components
  • Aerospace Components

Some of our more challenging projects have included working with:

  • Aluminum Core
  • Insert Molding
  • Gold Plated Copper Insert
  • Stainless Insert/Bearing
  • Stainless Insert/Bearing Surface
  • Thin Copper Plates
  • Threaded Brass Inserts
  • Two Material Molding
  • Two Shot Gasket Molding
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