Welcome to
Permian Plastics

  • Midwest based plastic injection molding
  • Delivering maximum value
  • Domestic / International tooling and completed products delivery

High Production Efficiency

  • Full servo robots
  • Bulk silo storage for automatic transfer
  • Crane system for rapid mold turnaround

Plastic Molding Design Services

  • Rapid Response at all stages of development
  • Injection molding prototypes
  • Partner in fully integrated manufacturing

Technical Consulting Support

  • Identify the right plastic for the application
  • Integrated secondary operations
  • Tool design and maintenance

Custom Plastic Molding: Industries We Serve

  • Biotechnology: Clean Room Molding
  • Healthcare Plastic Injection Molding
  • Consumer & Industrial: Plastic Products
  • Optical Systems: Precision Plastics
  • Electronics & Telecommunications

Quality Assurance

  • Defect free products
  • Meet or exceed customer requirements
  • Registrations
    • UL certified molder
    • ISO 9001:2008
    • FDA registration, Medical GMP compliance
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Plastics Injection Molding Company with Fresh Ideas

Permian Plastics delivers fresh ideas for your business. Design for Manufacturing. Engineered Plastics. Ideal Reshoring Partner for transferred molds.


  • Custom plastic injection molds and finished products-medical devices, lawn & garden consumer packaged goods, pest management and more
  • Modifying or repairing domestic or international tooling
  • Completing low or high volume production injection molding, insert molding or over molding
  • Discover, Design & Deliver for Medical Injection Molding, Medical Device Contract Manufacturing and all types of plastic injection molded parts
  • Assembly and Sub-assembly

We’re ready to drive your business as a cost-effective, flexible plastic injection molding company in St. Louis, Missouri.
ISO 9001:2008 Registered. UL Certified. FDA Registered.

plastic injection molding

Permian Plastics celebrates their 20th Anniversary as a Midwest plastic injection molder.

Total Solutions

In addition to world-class injection molding services, Permian Plastics offers a host of value-added capabilities that enable customers to source all their needs through one provider. Such capabilities include:

Assembly & sub-assembly work Pad printing
Tapping & Capping & Insertion Sonic welding
Hot stamping Special packaging
Milling and machining Other post molding operations
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1477 Hoff Industrial Drive, O'Fallon Missouri, 63366  |  (636) 978-4655
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