Plastic Injection Molding | Mold Design | Mold Flow Analysis | Tooling | Molded Parts

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    • Services
      • Plastic Injection Molding
      • Mold Design
      • Mold Flow Analysis
      • CNC Machining
    • Resources
      • What Are Lifters
      • What Are 3 Plate Molds
      • What Is The Golden Sample
      • Scientific Molding
      • Mold Classifications
    • About Us
    • Contact Us
  • Home
  • Services
    • Plastic Injection Molding
    • Mold Design
    • Mold Flow Analysis
    • CNC Machining
  • Resources
    • What Are Lifters
    • What Are 3 Plate Molds
    • What Is The Golden Sample
    • Scientific Molding
    • Mold Classifications
  • About Us
  • Contact Us

True Position Plastics

True Position PlasticsTrue Position PlasticsTrue Position Plastics

What is Plastic Injection Molding?

Plastic injection molding is a manufacturing process that produces plastic parts by injecting molten material into a custom-made mold. It is used for both high-volume production and low-volume runs, offering precise, repeatable results for everything from prototypes to full-scale production. 

Plastic Injection Molding & Tooling Solutions for Medical, Firearms, Automotive and Consumer Products Industries

  • Molded Parts:  Plastic injection molded parts are our specialty. We manage every stage, from initial part design review to mold construction and final plastic injection molded part delivery to ensure consistent, in-spec results. We support a wide range of materials, from commodity resins like polypropylene to advanced engineering-grade polymers like PEEK. Whether it’s a short run or full production, we deliver plastic molded parts that are ready for assembly. 


  • Tooling/Molds:   We provide high-quality plastic injection molds tailored to your molding machine specifications ready for production at your facility. Whether you need prototype tooling for early part validation or fully-hardened production molds for long-term, high-volume use, we offer molds built to SPI Class 101 through Class 105 standards.


  • Mold Design:  Our plastic injection mold design services are tailored to your exact needs. We offer in-house mold design capabilities and also collaborate with a network of trusted international partners across Taiwan, China, Malaysia, and the U.S. All plastic injection molds are built to our exacting standards, whether domestic or offshore. Once completed, plastic injection molds can be delivered directly to your facility ready to run in your molding presses. 


  • DFM:  We provide expert Design for Manufacturability (DFM) guidance to ensure your plastic part designs are optimized for efficient, high-quality plastic injection molding. Whether it’s adjusting wall thicknesses, minimizing undercuts, managing parting line locations, or assisting with Mold Flow Analysis, we help refine your plastic injection molded part design before any steel is cut; saving time, cost, and headaches down the line.


  • Project Management:  We provide comprehensive project management from initial quote through production. With over 25 years in the plastics industry, we know what to watch for and how to navigate complex tooling and molding challenges. Our hands-on approach ensures timelines are met, issues are anticipated, and the final product meets all expectations. We apply Scientific Molding principles throughout development, using data-driven processing and iteration to achieve your Golden Sample, the validated part that sets the standard for production.


  • Vendor/Supplier Visits:  We provide on-site support for critical production milestones, including first article inspections, sample runs, and production ramp-ups. With boots-on-the-ground availability in the U.S., China, Malaysia, Taiwan, and beyond, we’re ready to be where you need us ensuring your tooling runs smoothly, no matter where it’s built. 

Plastic Injection Molding for Custom Products

Custom Plastic Injection Molding Solutions

Custom Plastic Injection Molding Solutions

Custom Plastic Injection Molding Solutions

We offer all types of prototype and production plastic molding solutions. ISO 13485 | ISO 9001 | ITAR approvals are available at True Position Plastics.  We can provide you with final molded parts as well as tooling (molds) that can be ran at your facility. 

Production Molds (SPI Class 101/103)

Custom Plastic Injection Molding Solutions

Custom Plastic Injection Molding Solutions

High-output plastic injection molds with multiple identical cavities. Maximizes production efficiency and lowers per-part cost for high-volume runs. 

Prototype Molds (SPI Class 104/105)

Custom Plastic Injection Molding Solutions

Prototype Molds (SPI Class 104/105)

Fast-turn, low-volume tools to validate design, fit, and material performance before committing to full-scale production. We also offer bridge tools to carry you through early production. 

Family Molds

Insert Molding

Prototype Molds (SPI Class 104/105)

Multiple part designs molded in the same cycle using shared tooling. Excellent for product sets or parts that are used together, reducing tooling costs. 

Insert Molding

Insert Molding

Insert Molding

Plastic is molded around a pre-placed component (metal, electronics, etc.). Enhances part strength and reduces post-molding assembly 

Overmolding

Insert Molding

Insert Molding

Combines multiple materials into a single part, typically a rigid substrate with a soft-touch layer. Perfect for grips, seals, or aesthetic finishes. 

LFT (Long Fiber Thermoplastics)

LFT (Long Fiber Thermoplastics)

LFT (Long Fiber Thermoplastics)

Delivers high strength-to-weight ratio by reinforcing thermoplastics with long fibers. Great for structural components requiring stiffness and impact resistance. 

LSR (Liquid Silicone Rubber)

LFT (Long Fiber Thermoplastics)

LFT (Long Fiber Thermoplastics)

Precision molding for flexible, durable silicone parts. Ideal for medical, baby care, and high-temperature applications. Offers flash-free molding with tight tolerances.

Plastic Molded Product Examples

    Need Parts? Need Molds?

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