Plastic Overmolding

Injection Overmolding Services

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

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

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, employing this process can be less expensive than post-molding fabrication.

Plastic Overmolding Gallery

Check out some examples of our plastic overmolding work and custom solutions using engineered resins.

Engineered Resins

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 engineered resins we work with in the overmolding process:

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


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

See below for plastic overmolding services we provide for particular applications:

  • Electronics
  • Automotive Parts
  • Medical Devices
  • PCB (Printed Circuit Boards)
  • Flex PCB (Flexible Printed Circuit Boards)
  • RFID (Radio Frequency Identification Tags)
  • Defense/Military Components
  • Aerospace Components

Challenging Projects

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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Plastic Molded Concepts creates and ships parts that our customers can use with confidence, security, and safety.