Custom Plastic Injection Molding


Stack Plastic, Inc. is a custom plastic injection molding company based in California specializing in engineering thermoplastics, elastomers, and a number of other resins, including PEEK, Delrin, and more. We offer expert service throughout the entire injection molding product development process, from conception to prototyping to mass production.

Stack Plastics is an ISO 13485:2003 certified company with over 15 years’ experience in custom plastic injection molding. Based in the Bay Area of California, we specialize in Medical Device components but also supply plastic injection molded parts, components, and assemblies for a number of industries. We create plastic injection molded parts for everything from consumer products to aerospace components.

At Stack Plastics, we provide a wide variety of custom plastic injection molding services, and many secondary services, to give you the best quality products and the best customer service around. We perform:

Our plastic molding and production services are completely customizable to the needs of our customers, to ensure that you receive the ideal product to meet your exact specifications. Stack Plastics can create your products as prototypes, short run development parts, all the way up to full production runs with quantities in the millions. From the simplest designs to the most complex, we can handle any project.

Contact Stack Plastics for a custom quote for your plastic injection molded parts whether you’re in California or across the country. We’re ready to put our experience and capabilities to work for you.

Industries Served