Ultimaker PET CF: The Next Generation of High-Performance 3D Printing

Ultimaker has once again pushed the boundaries of desktop 3D printing with the release of PET CF (polyethylene terephthalate reinforced with carbon fiber)—a cutting-edge material that blends industrial strength, exceptional printability, and dimensional stability.

Designed for professionals who need reliable, high-strength parts without the complexity of metal printing, PET CF opens new possibilities for durable, functional prototypes and production-ready components—right from your Ultimaker S7 or S5.

What is PET CF?

Ultimaker PET CF is a carbon fiber-reinforced engineering thermoplastic, combining the ease-of-use of PET with the superior stiffness and strength of carbon fibers. It prints reliably on Ultimaker machines using the hardened CC print core, and delivers:

High strength-to-weight ratio
Excellent dimensional accuracy
Heat and chemical resistance
Low moisture absorption compared to nylon-based composites
Minimal warping and outstanding layer adhesion

This makes it an ideal material for demanding environments and mechanically loaded parts.

Key Benefits of PET CF

✅ Stronger Than Standard Plastics
PET CF offers enhanced tensile strength and rigidity, making it ideal for structural parts that need to hold their shape under stress or pressure.

✅ Prints Clean, Finishes Clean
With minimal warping and smooth surface finish, PET CF delivers consistent, professional-quality parts with little to no post-processing required.

✅ Resistant to Wear and Weather
With its excellent chemical and UV resistance, PET CF performs reliably in outdoor, mechanical, and industrial settings—perfect for jigs, brackets, housings, or enclosures.

✅ Optimized for Ultimaker Ecosystem
PET CF is fully integrated into the Ultimaker Cura slicer with tested profiles, works seamlessly with Breakaway support, and delivers plug-and-play performance when used with Ultimaker’s hardened CC print cores.

Real-World Possibilities with PET CF

From the workshop floor to the production line, Ultimaker PET CF is unlocking new applications across industries:

🔧 Tooling & Fixtures: PET CF is rigid enough to withstand repeated mechanical loads—ideal for jigs, fixtures, clamps, and templates used in assembly lines or test environments.

🛠 Functional Prototypes: Design and test load-bearing or high-precision parts that mimic the mechanical behavior of injection-molded or metal alternatives.

🚀 End-Use Parts: For low-volume production, PET CF is tough enough for functional brackets, equipment housings, or even robotic components.

🚗 Automotive & Industrial Components: With its resistance to chemicals, wear, and high temperatures, PET CF is suited for harsh industrial applications, including under-hood or factory floor conditions.

A Smarter Alternative to Metal

While metal printing still has its place, PET CF provides a cost-effective, office-friendly alternative—no debinding, no sintering, no outsourcing. It’s the perfect middle ground for parts that are too demanding for standard filaments but don’t require full metal strength.

Combined with Ultimaker’s intuitive hardware and software ecosystem, PET CF enables rapid production without compromising durability or precision.

Conclusion: Strong. Reliable. Ready for Industry.

Ultimaker PET CF is more than just another filament—it’s a gateway to industrial-grade performance for design engineers, product developers, and manufacturers. By combining high strength, clean printability, and professional finish, it turns your Ultimaker into a true production tool—capable of creating end-use, load-bearing parts, whenever and wherever you need them.

Discover the power of PET CF. Strong like carbon. Simple like plastic. Only with Ultimaker.

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Ultimaker PET CF: The Next Generation of High-Performance 3D Printing