

About SR Plastics
SR Plastics is a precision plastic injection molding manufacturer in Southern California, specializing in precision plastic and thermoplastic rubber components. From pre-production planning through full production, we provide support and solutions for projects in many industries.
Who Are We?
At SR Plastics, we have over 50 years of combined experience providing high-volume plastic injection molding. We work directly with you from start to finish (and anywhere in between!), helping with pre-production engineering, tooling design and development, and manufacturing components to your exact specifications.
As a full-service partner, we offer several secondary services to improve our processes and create solutions that work for you. Our capabilities include overmolding, hot stamping, secondary assembling, sonic welding, PAD printing, and more. And, utilizing our “green technology,” we can produce products from post-consumer materials, designing and manufacturing eco-friendly products that support environmental responsibility.
Working closely with SR Machining, our sister company specializing in CNC machining, we can create complex components involving both plastic injection molding and custom CNC machining.
What Areas Do We Serve?
Based in Southern California, we support customers throughout the United States and across our local region, with primary service areas including:
Our high-volume plastic injection molding services support a variety of industries, including but not limited to:
- Aerospace: Aircraft electronic components used in control valve applications.
- Industrial Pump and Fluid Management: Manifolds, valves, and fluid management components.
- Fuel Management Systems: Gasoline pumps, disconnect applications, and distribution components.
- Medical: Optical lenses, manifolds, and analytical/diagnostic testing equipment.
- Music Industry: Precision-molded products, particularly for guitars.
What Materials Do We Specialize In?
As a leading plastic injection molding manufacturer, SR Plastics works with a wide range of plastics and thermoplastics to meet various requirements and specifications. Common materials for plastic injection molding include but are not limited to:
- ABS
- HDPE
- LDPE
- PA66
- PEEK
- PET
- PPE
- PVC
- TPE
- And more!
Our team can help you determine the best material for your application.
Why Work with SR Plastics?
SR Plastics is a full-service plastic injection molding manufacturer, proudly providing a complete range of services to support your project requirements from start to finish. Our facility houses an extensive selection of molding equipment, including 32 plastic injection molding machines ranging from 50 to 1,000 tons and two 150-ton rubber presses, allowing us to handle both high-volume and specialized production requests.
We maintain two CMM measuring machines, a Keyence visual measuring unit, an optical comparator, and other calibrated inspection plates, gauges, and micrometers. These tools help us ensure advanced inspection and quality control for every component. We are AS9100 and ISO9001 certified to ensure compliance with all applicable industrial requirements.
We offer vendor-managed inventory (VMI) services to monitor your existing inventory and manage product replenishment, so you can keep your supply stocked without the hassle.
Our partnership with SR Machining offers access to precision CNC machining, providing both molded and machined plastic components from one reliable partner.
Contact SR Plastics Today!
With over 50 years of combined manufacturing experience, SR Plastics is your trusted source for precision injection molding services. We deliver custom molded components for a variety of industries, meeting your exact requirements and ensuring high quality every time. We proudly serve Southern California and customers nationwide, meeting you where you are and providing solutions that work for you.
Contact us for more information or request a quote to get started on your custom plastic injection molding order today!

