Full-Turnkey Contract Manufacturing · St. Charles, Illinois
Custom Plastic
Injection Molding,
Built for Production.
100+ presses from 35 to 1100 tons, liquid silicone molding, and value-added operations under one quality system — 30 minutes from Chicago and O'Hare.
Manufacturing Capabilities & Services
01
Plastic Injection Molding
Two-shot, insert, and over-molding — from micro precision parts to large structural components.
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02
Liquid Silicone Rubber Molding
Medical-grade LSR molding for demanding, biocompatible applications.
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03
Tooling Transfers
Coordinated domestic and international mold transfers with full validation.
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04
Contract Manufacturing
Turnkey programs from design consultation through delivery and supply chain.
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05
Value-Added & Secondary Operations
Assembly, sonic welding, decorating, and packaging to ship finished goods.
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06
Engineering & Quality Services
DFM, prototyping, mold design, and an ISO-certified quality lab in-house.
Explore01
Plastic Injection Molding
Two-shot, insert, and over-molding — from micro precision parts to large structural components.
Explore02
Liquid Silicone Rubber Molding
Medical-grade LSR molding for demanding, biocompatible applications.
Explore03
Tooling Transfers
Coordinated domestic and international mold transfers with full validation.
Explore04
Contract Manufacturing
Turnkey programs from design consultation through delivery and supply chain.
Explore05
Value-Added & Secondary Operations
Assembly, sonic welding, decorating, and packaging to ship finished goods.
Explore06
Engineering & Quality Services
DFM, prototyping, mold design, and an ISO-certified quality lab in-house.
ExploreSince 1974
50+ Years of Manufacturing Excellence
Wise Plastics Technologies is a full turnkey contract manufacturing company headquartered in St. Charles, Illinois — only 30 minutes from Chicago and O'Hare — specializing in custom plastic injection molding, liquid silicone injection molding (LSR), and value-added secondary operations.
Three independent, purpose-built facilities give scaling programs the capacity headroom they need — without ever leaving Illinois.
How We Work
From print to production
A documented path from first conversation to shipped parts.
01
Quote & Feasibility
Send prints or CAD and get a detailed quote with honest feasibility feedback.
02
DFM & Engineering
Material selection, tolerance review, and design-for-manufacturing input before steel is cut.
03
Tooling
New tool builds or transfers, sampled and debugged on the press that will run production.
04
Validation
First article inspection, capability studies, and IQ/OQ/PQ or PPAP to your requirements.
05
Production
Scientific molding 24/5 — and 24/7 when workload demands — with in-process quality monitoring and logistics.
Why Wise Plastics
Built for demanding programs
Five decades of manufacturing discipline, modern equipment, and an unwavering commitment to quality.
ISO Certified Quality
ISO 9001:2015 and ISO 13485:2016 certified with comprehensive quality management systems
Learn moreScientific Molding & Automation
Data-driven, documented processes with automation on every cell — repeatable quality at production speed
Learn moreExperienced Team
200+ skilled professionals running 24/5 — and 24/7 as workload demands
Learn moreFull Supply Chain
Reliable sourcing, inventory, and logistics management across diverse industries
Learn moreInsights
From the Wise Team
A new technical article every month — the same advice we give customers across the table.
The ROI of Early Supplier Involvement (ESI)
Why bringing your contract molder in at the CAD stage prevents costly tooling rework, schedule slips, and per-part cost creep — and what to bring to a first DFM review.
Read articleYour Manufacturing Solution Starts Here
Send prints or CAD and get a real answer on fit, price, and timeline.