Custom Molded Rubber and Plastic Products

Your Partner for Exceptional Molding Solutions

Helping You Mold Out Your Customized Designs

Gibbs Plastic And Rubber LLC in Benicia, California has served industry as a premier custom molder of rubber and plastic products. We can manufacture just about anything you can design, from automotive to aerospace. With in-house CNC mold-making capabilities and tool design, we can help launch your product from prototype to production.

What We Can Do

Serving clients since 1984, we have a complete rubber product manufacturing facility that handles manufacturing and inspection processes.


Injection Molding

Whether the job is big or small, we have a wide range of injection molding machines to address your needs. We have 100 Ton to 450 Ton machines available.


Compression Molding

We have over 20 machines dedicated to compression molding from 1 Ton to 450 Ton, giving us the capacity to meet your requirements.

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Transfer Molding

For critical surfaces or special material requirements, our transfer molding can help address your needs.


Die Cutting

When your custom molded part needs the correct application, our die-cutting service is a reasonable alternative solution.


In-house Cryogenic Deflashing Services

We have a state-of-the-art cryogenic deflashing department capable of meeting your job requirements.

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Inspection Services

With a full lab, we can meet the most demanding requirements with the highest quality standards. We can meet any (RMA) Rubber Manufacturing Guideline.

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Prototyping Services

With in-house CNC machinery, we can turn a prototype mold around quickly.


We have a consulting team with more than 60 years of experience to help you formulate custom compounds to meet your application. Custom milling machines on-site allow us to deliver the quality and quantity that you desire. When needed, we can also design elastomer.

  • Low to High-Temperature Nitriles
  • Most Colors
  • Military Specs
  • Custom ASTM Callouts
  • Ozone Resistant Materials
  • FDA Compounds
  • Acid and Chemical Resistant Materials
  • Teflon Coating

All Products Made in the U.S.A.

Get in Touch

For questions or concerns, reach out to our team today. We would be happy to address all your inquiries about our company and services.