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Post Production

At Seaway Plastics, the job may not be done when the plastic injection molding phase is completed. Our depth of experience in post molding processes makes us one of the few companies to offer turn-key production support to truly complete your project with a full range of finishing services.

Post-Molding Services:

  • Light assembly
  • Sonic welding
  • Heat staking
  • Thermal/ultrasonic Inserting
  • Machining and CNC machining
  • Ultrasonic cleaning
  • Laser marking
  • Painting (full decorative painting capabilities)
  • EMI/RFI shielding
  • Screen printing
  • Pad printing


  • Nadcap AC 7004 & AC 7108