AS9100 Made in the USA
Molding Irons

QUALITY PLASTIC PARTS - MADE IN AMERICA

Thermoset Molding • Compression Molding • Transfer Molding

Explore Plastic Molding Capabilities

Custom Plastic Component Parts Manufacturing

Southwest Plastics Company is a high-precision plastic parts manufacturer. Located in Southern California, we have used our custom plastic components manufacturing capabilities to provide customers of all industries with high-quality plastic components for over 45 years. Our experience in thermoplastic injection molding, transfer, and compression molding, combined with our in-depth knowledge of materials, allows us to deliver quality parts at economical prices. Whatever your plastic injection molding requirements entail, our engineers will help you take your ideas from concept to mass production.

At Southwest Plastics, we pride ourselves on ensuring:

  • Faster turnaround times
  • The right material for the right project
  • Combine metal with plastic parts
  • Your intellectual property is safe
Why Choose Us

Our Plastic Molding Capabilities

Thermoset Molding

Precision thermoset molding delivers durable, high-performance components for demanding applications.

Thermoset Molding Services

Thermoplastic Injection Molding

Thermoplastic injection molding creates precise, durable parts with excellent flexibility and impact resistance.

Thermoplastic Injection Molding Services

Transfer Molding

Transfer molding offers superior precision and material control for complex parts.

Transfer Molding Services

Compression Molding

Ideal for large, complex shapes, compression molding ensures reliable performance and minimal waste.

Compression Molding Services

Companies We've Worked With

Lockheed Martin
L3 Technologies
Cobham
Bell
Raytheon
Safariland

Plastic Injection Molding Services for All Industries

We manufacture components used in many of the world's most demanding industries. Our plastic manufacturing capabilities can handle everything from standard components like bushings, bearings, valves, and pumps to complex custom parts with unique dimensions.

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Serving Our Customers Since 1974

Since 1974, Southwest Plastics has provided outstanding quality, value, and service for customers nationwide. We’re committed to producing our plastic components onshore to ensure you get the best quality plastic components for your application. Whether you're a large corporation looking for high-volume plastic part production or a small private business looking to develop a custom component part, Southwest Plastics can make your vision a reality.

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