As part of our mission to be the World Leader in Product Protection, StockCap has invested heavily in the thermoforming process. This process not only allows us to manufacture clear plastic caps and covers, but it expands our ability to create custom, “product protection” solutions like shipping trays and thermoformed inserts.
Design Experience
With over 70+ years of design experience, our team can advise clients on the best design and material options for their specific application. We use PTC Creo and Siemens NX programs to seamlessly integrate the design and tooling fabrication processes.

Rapid Prototyping
With extensive experience designing material handling trays and comprehensive prototyping capabilities, our design team can quickly turn your conceptual designs into tangible prototypes, so you can get your product to market faster and more cost-effectively.
- 3D and 2D Computer Aided Design Software
- Start of the Art 3D Laser Scanners
- 3D MicroScribe Digitizing Equipment
- CNC Mold Milling Machine
- 3D Printers for Precise Model & Sample Generation
Experienced in Processing Multiple Materials
Our many years of experience combined with the variety of equipment capabilities allows us to process many types of materials, including HIPS, PET, PETG, ABS, PVC, OPS, HDPE, and PP as well as…




Our Capabilities
As a custom thermoformer, we have an extensive amount of thermoforming equipment that allows us to manufacture parts in the most cost-effective manner. Our primary expertise lies in producing high volume parts – both high-precision and industry standard.
- Rigid materials from .008” – .080” in thickness
- Part sizes from less than 1” and up to 36”
Our equipment goes beyond that of a typical thermoforming company. We have engineered unique machinery for specialized applications.
National Manufacturing Locations
As part of the Sinclair & Rush family of companies, we have thermoforming operations centrally located in St. Louis, Missouri and on the west coast in Portland, Oregon.
