Resin injecion mold

How to Choose the Right Resin for Injection Molding Success

Choosing the right plastic resin isn’t just about cost alone — it’s also about how your product performs in the real world.

Here’s a quick guide to help make that decision easier:

Ultra High-Performance Resins (PEEK, Radel, Ultem, Ryton, FEP, PFA and PTFE)

  • Used in medical, aerospace, defense, and petroleum
  • Handle high temps, pressure, and chemicals
  • Ideal for critical applications where failure is not an option
  • Can be customized with modifiers to enhance specific performance requirements

Engineering-Grade Resins (ABS, Acetal, Nylon, Polycarbonate, Polyurethane and Acrylic)

  • Durable and more affordable
  • Used in consumer goods, electronics, and industrial parts
  • Good balance of strength and cost
  • Can be customized with modifiers to enhance specific performance requirements

Commodity Resins (Polypropylene, HDPE, LDPE and Polystyrene)

  • Cost-effective for high-volume applications
  • Used in packaging, disposable items, and low-load parts
  • Used in applications requiring a “Living Hinge” feature
  • Used in thin-wall applications
  • Can be customized with modifiers to enhance specific performance requirements

Every resin has its own flow characteristics, shrink rate, and behavior in the press. That’s why it’s essential to work with a molder who knows how to match your application to the right material.

At Action Plastic Injection Molding, we help clients from design to delivery. Let us help you get it right the first time. Call us at (714) 978-0333 to explore your project with our team.

Also read: How Tooling Transfers Can Save Time, Money, and Production Headaches

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