Turnkey Secondary Assembly
Consolidate your operations. We perform sub-assembly, sonic welding, heat staking, pad printing, surface coating, and custom retail-ready packaging.
- Ultrasonic & Heat Staking
- Custom Pad Printing & Kitting
ISO 9001:2015 CERTIFIED | PALATINE, IL FACILITY
Custom Plastic Injection Molding Services
Turnkey thermoplastic engineering and precision molding from prototype to high-volume production runs. Eliminate supply chain delays with our 100% US-based manufacturing facility.
- Tooling Transfers & Maintenance
- DFM & Early Engineering Support
- Overmolding & Insert Molding
- Secondary Value-Add Assembly
FAST 24-HOUR RFQ RESPONSE
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Trusted Partner for Leading OEMs & Component Manufacturers Across North America
1995
Established Year
99.4%
On-Time Delivery Rate
ISO 9001
Certified Since 2001
100%
US Manufacturing (Palatine, IL)
Core Capabilities & Value Additions
One-Stop Engineering & Custom Molding Solutions
Driven by precision plastic injection molding at our core, JDI Plastics backs every project with end-to-end engineering, tooling management, and value-added assembly.
PRECISION THERMOPLASTIC PROCESSING
Custom Plastic Injection Molding Services
At the core of JDI Plastics is our high-precision custom plastic injection molding facility in Palatine, IL. We engineer and mold high-tolerance components across a wide range of press capacities, part complexities, and thermoplastic resins—delivering consistent part quality from low-volume production to high-volume manufacturing runs.
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Precision & Tight TolerancesRepeatable dimensional accuracy for critical OEM components.
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Overmolding & Insert MoldingMetal-to-plastic conversions, threaded inserts, and soft-touch rubber grips.
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Commodity & Engineering ResinsExpertise in ABS, Polypropylene, Glass-Filled Nylon, PC, PEEK, and TPE.
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Scalable Production RunsFrom initial 500-unit production runs to 100,000+ unit mass manufacturing.
Integrated Value-Added Services
Enhancing your injection molding projects with turnkey secondary, tooling, and quality solutions.
Tooling Transfers & Reshoring
Seamlessly relocate existing tooling to JDI. We inspect, perform preventative maintenance, tune up molds, and resume production with zero downtime.
- In-House Mold Preventative Maintenance
- Rapid Tooling Onboarding
DFM &
Tool Design
Early Supplier Involvement (ESI) ensures your parts are optimized for molding before tooling is cut—reducing cycle times and cutting part costs.
- Mold Flow Analysis & Prototyping
- Part Optimization for Tooling
ISO 9001:2015
Quality
Certified since 2001, our quality system enforces rigorous Cpk/Ppk statistical process control, lot traceability, and first article inspections.
- ISO Certified Quality Control
- First Article Inspection Reports (FAIR)
Material Expertise
Resin Selection & Specialty Polymers
Compare our extensive thermoplastic resin processing capabilities across performance ratings, key properties, and common OEM applications.
| Resin/Material | Category | Key Properties | Common Applications |
Thermal & Chemical Resistance |
|---|---|---|---|---|
|
ABS / ABS-PC Blend |
ENGINEERING |
High impact strength, dimensional stability, easy to finish/plate |
Electronics housings, automotive trim, appliance enclosures |
Moderate Temp (up to 200°F) / Good Oils Resistance |
|
Polypropylene (PP) |
COMMODITY |
Lightweight, high fatigue strength, excellent living hinge capability |
Containers, caps & closures, automotive battery cases |
Moderate Temp / Superior Chemical Resistance |
|
Nylon (PA 6 / PA 66) |
ENGINEERING |
High tensile strength, wear resistance, available glass-filled |
Structural brackets, gears, under-the-hood components |
High Temp (up to 300°F+) / Fuel & Solvent Resistant |
|
Polycarbonate (PC) |
ENGINEERING |
Optical clarity, extreme impact resistance, rigid stability |
Lenses, transparent covers, medical device housings |
High Heat Deflection / Fair Chemical Resistance |
|
PEEK / ULTEM |
SPECIALTY HIGH TEMP |
Outstanding mechanical properties, extreme heat and flame resistance |
Aerospace parts, medical implants, oil & gas valve components |
Extreme Temp (up to 480°F+) / Broad Chemical Inertness |
|
TPE / TPU Elastomers |
SPECIALTY SOFT TOUCH |
Rubber-like flexibility, overmolding bond strength, tactile grip |
Soft-touch tool handles, seals, gaskets, vibration dampeners |
Flexible Operating Range / High Weathering & UV |
Target OEM Markets
Industries We Serve
Delivering precision injection molded parts tailored to strict regulatory and functional requirements across diverse sectors.
Medical Devices
Medical Devices
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Automotive
learn moreElectronics
Electronics
learn moreTools & Hardware
Tools & Hardware
learn moreSporting Goods
Sporting Goods
learn moreIndustrial & Mining
Industrial & Mining
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5.0 Star Rating from Satisfied OEMs
Based on verified Google Reviews from leading industrial partners.
Got Questions?
Frequently Asked Questions
Everything you need to know about starting an injection molding project with JDI.
How quickly can I receive a quote for my injection molding project?
JDI Plastics has been ISO 9001 certified continuously since 2001 (currently ISO 9001:2015). We maintain full lot traceability, offer Cpk/Ppk process` capability studies, and provide First Article Inspection Reports (FAIR).
Can JDI transfer existing tooling from another supplier?
JDI Plastics has been ISO 9001 certified continuously since 2001 (currently ISO 9001:2015). We maintain full lot traceability, offer Cpk/Ppk process` capability studies, and provide First Article Inspection Reports (FAIR).
What production volumes do you handle in Palatine, IL?
JDI Plastics has been ISO 9001 certified continuously since 2001 (currently ISO 9001:2015). We maintain full lot traceability, offer Cpk/Ppk process` capability studies, and provide First Article Inspection Reports (FAIR).
What quality certifications does JDI Plastics hold?
JDI Plastics has been ISO 9001 certified continuously since 2001 (currently ISO 9001:2015). We maintain full lot traceability, offer Cpk/Ppk process` capability studies, and provide First Article Inspection Reports (FAIR).