Your Plastic Parts, Seamlessly Delivered.
Join Hundreds of OEMs Who Put Our 30 Years of Expertise to Work.
Elevate your OEM projects with high-quality custom plastic manufacturing and product solutions—made in the USA, priced right, backed by experts.
Made in the USA
High Quality Materials
Competitive Pricing
Trusted Support
Trusted Suppliers
How CPS Helps You Win
Custom Plastic Solutions is an independent sourcing partner that aligns your project with the right process, material, press, and processor. Because CPS generates its revenue from processing partners - not by marking up tooling, materials, or storage - you receive unbiased guidance, transparent costs, and faster market entry.
Quality + Compliance
You can be confident that our processing partners are ISO 9001 certified. Materials are NSF, FDA, USDA, UL, and USP Approved.
Your Parts, Accelerated.
Find the best manufacturing route without breaking a sweat, whether you need a 10 × 10 ft utility panel or a precision gear housing. Processes range from
Structural Foam,
Injection Molding, and
Gas Assist
to
Thermoforming,
Compression Molding, and
Rotational Molding.
Proof in Numbers
30+ years
of plastics industry experience
150+ machines
at your disposal, including high‑tonnage presses up to 8,000 T
1000+ programs
successfully managed from start to finish
What Process Do You Need?
| Process | Why It Matters for Plastic Part Manufacturing |
|---|---|
| Structural Foam Molding | Low-pressure, multi-nozzle capability produces thick-walled parts up to 350 lb efficiently |
| Injection Molding | High-tonnage presses handle oversized or high-volume workloads with tight tolerances; smaller tonnage machines handle precision |
| Gas Assist Molding | Internal gas channels lighten parts and cut cycle time while preserving strength |
| Thermoforming | Ideal for large plastic panels and lightweight enclosures |
| Rotational Molding | Seamless hollow bodies for tanks, bins, and complex shapes |
| Compression Molding | High-pressure consolidation of reinforced or high-heat polymers |
Manufacturing Support
Need guidance on processes or materials for manufacturing your large plastic parts? You can rely on our experience to present you with the best possible solutions.
Design Support
Looking for DFM or part design help on your next project? We partner with Aries 3D to bring you digital design, analysis, and prototyping support.
Strategic Support
Seeking new ideas for cost savings or innovation strategies? Use our expertise to your advantage.
Industries Served
Recreational Vehicles
Sporting Goods
Marine
Agriculture
Industrial Equipment
Transportation
Building / Construction
Electrical / Electronic
Telecommunications
Utilities
Appliances
Consumer Goods
Water Management
Packaging
Why Manufacturers Rely on CPS
Important Part of Our Business
Whether you are looking for help with a new program or help finding a solution to an ongoing problem, they should be your first call. They are an important part of what we expect to get done in our business every single day.
-- Procurement Manager,
Telecommunications Contractor
Sustainable Resin Options, Certified from Source to Shipment
Choose biobased, mass-balance, recycled, and compostable plastics delivered through our ISCC PLUS certified partner, MGI International. Together, we give OEMs a clear, auditable path to hit sustainability targets — without compromising performance or supply security.
Plastic Resins and Products
Your materials needs are covered when you work with us.
- Thermoplastic resins and compounds that strike the ideal cost performance balance.
- Custom and stock sheet cut to size or fabricated.
Need plastic pallets? Our ISO 9001 certified partner has the answer.
Frequently Asked Questions
Are you a manufacturer?
No. CPS is your sourcing and project-development partner, connecting you to proven processors with the right equipment for your part production.
What is different about large plastic part manufacturing?
Oversized plastic parts demand specialized presses, tooling expertise, and optimized logistics - capabilities many molders lack. CPS bridges that gap for you with its partner processors.
What if my run is small?
We will work to connect you with the right processor partner, and if a direct fit isn’t available, our team will recommend trusted alternatives.
USA-Based Production Backed by 30 Years of Unbiased Insight
Bring us your concept and tap three decades of plastics and materials know-how across every major industry. We listen first, recommend the optimal material-process match, and manage manufacturing in the U.S. to keep your project on schedule and on budget. Expect same-day answers and commercial-ready parts without the guesswork.
Ready to Start?
Big idea, tight deadline, or just scouting the best manufacturing processes for large plastic parts or engineered components?
