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CoexFlex 3D Printer Filament

CoexFlex 3D Printer Filament

CoexFlex thermoplastic elastomer (TPE) and thermoplastic polyurethane (TPU) filaments are manufactured from the highest quality versatile copolyesters developed by DuPont and BASF. Our CoexFlex 3D printer filaments combine the flexibility of rubber with the strength and processibility of thermoplastics. Parts printed with CoexFlex exhibit excellent layer adhesion, great durability and are - of course - flexible! CoexFlex™ is great for printing handles and grips, soft protective covers, custom-shaped seals and gaskets and other flexible functional parts. CoexFlex 3D printer filaments are used by customers across several industries (automotive, electrical, electronics, furniture, sporting goods, oil and gas, etc.).
CoexFlex™ 3D printer TPE filament comes in three hardnesses: 30D, 40D and 60D on the shore hardness scale. These materials are engineering-grade and have a wide range of chemical and solvent resistances. You can read our blog post about these materials for an in-depth look as to great applications of these three TPE materials.
CoexFlex™ 60A TPU 3D printer filament is one of the softest flexible filaments on the market and can be used to create extremely squishy parts. It can, however, also be difficult to print. Check out our article all about everything you need to know to successfully print with this incredible material.

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Learn about our 3D Printing Filament

Our Resins

Our resins are sourced from suppliers committed to high quality standards. Our partnerships with these suppliers ensures we maintain quality and consistent filament batch after batch. We only use prime virgin resins, colorants and processing additives to ensure reliability.

Our Grades of Materials

We believe in our filament so much, we often tell customers to start with our base filaments and compare them to the other makers higher grade filament. But we didn't stop with a great base grade, we also offer Prime in our PLA and ABS lineup. Prime is a more refined resin which improves print quality and strength.

Our Quality Control

We quality control the entire process of our filament. Starting with an incoming inspection process, we verify the resin is the quality we expect. Precise temperatures are monitored during extrusion. Laser measuring ensures our filament is held within a .03 tolerance. Final visual inspection for color and quality ensure you are receiving our best product.

Our Facility

Our climate controlled factory ensures dry material throughout the filament making process. Once the filament is spooled, each roll is vacuum sealed with desiccant inside the bag to prevent moisture. More hygroscopic materials go through an additional drying process in both the raw resin and then again once spooled, before being vacuum sealed

Our Process

We use industrial-grade extruders which melt and mix our resins with colorant, which is precisely fed at a consistent rate, via gravimetric color feeders.

Once melted and uniformly mixed, the resin is pushed through a heated die and fed into a warm water bath, which quickly cools the filament.

An industrial filament puller maintains the filament diameter, by speeding up or slowing down, based on readings it receives from the laser measuring head. The laser measuring head not only measures the diameter, but also the ovality, or in our case, lack thereof.

Our winding machines then spool up the filament with a traverse feeder, which ensures an even flat winding. This also ensures that it cannot overlap filament and cause a tangle.

Our finished spools are post-dried in our walk-in oven and then immediately vacuums sealed with a desiccant pack to ensure you receive dry filament.