Performance

Run reliability and quality customer service

Innovation

Focused on new capabilities and technology

Partnership

Customized solutions to fit your business need

Need Spiral Coil Binding?

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

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 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.

COEX Blog


  • Coex fans, we are getting ready for our Cyber Monday sale again this year.  We will be offering 45% off all of our products offered online.  No restrictions, no limits, no kidding! Dont hesitate, you won’t see filament at thisRead More

  • New Lower Price on PETG!

    Coex fans, you asked and we have answered.  We have a new, lower cost structure on our PETG products.  You can now get a 500g spool of PETG for as low as $12.99, and 1kg spool for as low asRead More

  • DuPont Hytrel® Now Available!

    DuPont Hytrel® Now Available Our team has partnered with the leader in plastics technology, DuPont™. With 90 years of experience behind the firm, you get the technology behind thousands of current applications, now available for FDM. You can only getRead More

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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.