Engineering Better Materials for 3D Printing

At COEX 3D, we believe great 3D prints begin with great materials.

Based in Green Bay, Wisconsin, COEX 3D is a USA-based manufacturer specializing in high-quality 3D printer filament and additive manufacturing solutions. Our journey began in 1996 as a manufacturer of plastic spiral book bindings. In 2016, we recognized the similarities between our existing manufacturing expertise and the production of 3D printer filament and produced our first spool of ABS filament.

Since then, we have continued to expand our capabilities, materials, and expertise to support the rapidly evolving world of 3D printing.

Made in the USA

Manufacturing in the United States is an important part of who we are.

Our 3D printer filament is produced at our Wisconsin facility using carefully selected raw materials, advanced extrusion equipment, and precision measurement systems. We use prime virgin resins, colorants, and processing additives to help maintain reliable performance and consistency from spool to spool.

Our production process includes inline filament measurement designed to maintain tight diameter tolerances, helping provide smooth and consistent feeding during printing.

High-Quality 3D Printer Filament

COEX 3D offers a broad range of materials for different printing requirements and applications.

Our filament collection includes PLA, PLA Prime, PLA+Silk, PETG, PCTG, ABS, ASA, flexible TPE and TPU materials, nylon-based products, reinforced materials, support filament, and other specialized options.

Whether you are a hobbyist printing at home, an engineer developing prototypes, or a business producing functional components, our goal is to provide materials that perform reliably across a wide range of applications.

More Than a Filament Manufacturer

COEX 3D has grown beyond filament manufacturing into a broader additive manufacturing partner.

Our capabilities include 3D printing services, rapid prototyping, custom manufacturing, design support, 3D scanning, and finishing services. Businesses can also work with us through contract manufacturing, private label programs, OEM partnerships, reselling, and distribution.

By combining material expertise with manufacturing experience, we can help customers move from an initial idea to a functional printed part.

Innovation Through Polymer Science

3D printing technology continues to evolve, and so do the materials required to support it.

At COEX 3D, we continuously research new polymers, processes, and applications to expand the possibilities of additive manufacturing. Our team works directly with customers to troubleshoot printing challenges, explore new materials, and develop solutions for specific projects.

We understand that different applications require different material characteristics. That is why we continue to expand our selection of standard and high-performance polymers.

Built Around Quality and Consistency

Consistency matters in 3D printing.

Variations in filament diameter, raw materials, moisture, and processing can affect the printing experience and final results. Our manufacturing and quality-control processes are designed to minimize these variables and provide dependable materials.

We maintain consistent raw material sources and use calibrated equipment and measurement systems throughout production. Our filament is also packaged with care to help ensure it arrives ready for use.

Every spool is backed by our 100% customer satisfaction guarantee, reflecting our confidence in the products we manufacture.

A Partner for 3D Printing

We see our role as more than simply supplying filament.

Our team works with makers, engineers, manufacturers, entrepreneurs, educators, businesses, and 3D printer companies to understand their requirements and find practical solutions.

From custom spool sizes and specialty materials to high-volume production and contract manufacturing, we aim to provide flexible options that can grow with our customers' needs.

Our Mission

Our mission is to help make additive manufacturing more reliable, accessible, and innovative through high-quality materials and technical expertise.

We combine decades of manufacturing experience with a forward-looking approach to polymer science and 3D printing technology. By listening to our customers and continually improving our products and processes, we strive to remain a dependable partner for the next generation of manufacturing.

Creating What Comes Next

From our beginnings in plastic manufacturing to our evolution into 3D printing materials and additive manufacturing services, COEX 3D has always been driven by a willingness to adapt and innovate.

Today, we continue to manufacture 3D printer filament in Wisconsin while helping customers turn digital designs into real-world products.

Whether you are printing your first model, developing a prototype, or scaling a manufacturing project, COEX 3D is here to help you build what comes next.