Performance

Run reliability and quality customer service

Innovation

Focused on new capabilities and technology

Partnership

Customized solutions to fit your business need

Featured Products

New Products

Need Spiral Coil Binding?

COEX COIL manufactures high-quality spiral coils and coil filament. Contact us to place an order today.

Contact Us

 Working with COEX LLC – Everything You Need in a Product and Partner

COEX 3D is dedicated to manufacturing the highest quality 3D printing materials in the industry. We are located in the heart of the Midwest in Appleton, WI, USA. We adhere to strict quality standards, ensuring optimal performance and premium resolution of all our 3D printing materials. Our advanced extrusion equipment and laser micrometers ensure quality and consistency of our 3D printer filament. We use only prime virgin resins, colorants and processing additives to ensure our customers can rely on COEX 3D filament.

COEX 3D recognizes that 3D printing innovation is constant. That’s why we take great pride in advancing 3D printer material technology through polymer science research and innovation. Our team can accommodate custom projects and work directly with customers on troubleshooting and new product development.

Plastic coil binding is a popular and inexpensive way to create beautifully finished products. At COEX COIL, we manufacture filament and plastic spiral binding coils in-house, offering 45 different colors and a variety of sizes. Our spiral binding material is flexible, durable and one of the most popular ways to bind documents.

Whether you’re looking to place a plastic coil order or would like to purchase coil filament for your own bindery, we have the plastic coil product to meet your needs.

Partner With Us

COEX offers multiple ways to be a 3D printer filament or coil binding partner. 

Contract Manufacturing

Use our expertise and state-of-the-art equipment to produce custom products to meet the needs of your business.

OEM Printer Partner

We provide 3D printer manufacturers with quality 3D printer filament to sell alongside their existing products and services.

Rapid Prototyping

Our firm helps organizations around the world use additive manufacturing to create efficiencies and speed up business processes.

Reselling & Distributorship

We supply the best 3D printing materials to a network of distributors for resale to their customer base.

Our focus on new technology, quality and outstanding customer service make us the perfect partner. Contact us or call 920.757.1055.

COEX Blog

  • FOUR Days of Savings

    What’s a 3D 4Day Coex-travaganza?  It’s our best online sale ever.  That’s all. We didn’t want you to miss out on the great deals due to the time constraints of a one-day sale.  We know you’re busy.  We also know… Read More

  • New Team Page… after a loooong delay…

    Coex fans, we have *finally* updated our website to include (and introduce) our “new” team which has been in place since early 2018!  Indulge us if you’re interested in who makes Coex tick these days: About Coex and Our Team… Read More

  • The Latest in Our SPARKLE Line of Filaments – *SPARKLE* PETG!

    Coex fans who print with PETG will be happy to learn that we’ve now dabbled in translucent *sparkle* colors in their favorite filament. Check out the latest: *SPARKLE* Cobalt Blue PETG and *SPARKLE* Salsa Red PETG  Ours is the pinnacle… Read More

Join the Coex Community

Share information about your latest 3D printing project. 

Drake Quick-Laughlin
I printed this hand screw clamp at 350um for speed and strength. It only took 7 hours and has a pretty good build quality despite it's layer height. I used a semi-transparent red, ocean blue and metallic gunmetal silver for…
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See Our 3D Filament in Action

Check out our 3D printer filament in use in our in-house 3D printer.

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"From sales to shipment, we love working with the COEX team!  Not only do they produce consistent, high-quality filament, their team is super flexible and willing to take on all of our requests." — Matt F.