PET CF Filament
PET CF Filament
Strength Meets Simplicity with PET CF Filament
Designed for reliability and durability, PET CF material brings together the best of both worlds, mechanical toughness and smooth printability.
Whether you're producing functional prototypes, jigs and fixtures, or end-use parts that need to withstand stress, PET-CF gives you that professional finish and robust performance without the hassle of brittle engineering polymers.
What Is PET-CF Filament?
PET-CF (polyethylene terephthalate reinforced with carbon fibre) is an engineering-grade thermoplastic designed for functional, high-strength 3D printing. The addition of chopped carbon fibres enhances stiffness, heat resistance, and dimensional stability, making it a smart choice for demanding applications where regular PET or general-purpose materials fall short.
PET-CF prints with minimal warping, excellent layer adhesion, and a matte surface finish that’s both attractive and functional. It’s also less hygroscopic than many other high-performance filaments, so you’ll spend less time drying and more time printing.
Performance You Can Rely On
PET-CF is built for strength and repeatability. It resists mechanical loads, maintains dimensional accuracy under thermal or structural stress, and delivers superior thermal performance. Whether you’re printing tooling, fixtures, or robust enclosures, it’s ready to take on tough environments.
You’ll get clean overhangs, crisp edges, and dependable results across complex geometries. PET-CF is compatible with a wide range of professional FDM 3D printers, including machines from Markforged, Bambu Lab, and other systems equipped with hardened nozzles designed for abrasive filaments.
Designed for Professionals, Ready for Real Work
From automotive prototypes to robotic components and industrial tooling, PET-CF delivers performance that exceeds expectations. It offers the elevated mechanical properties needed in production and engineering environments, without compromising on ease of use.
At Additive-X, we only stock high-performance materials trusted by engineers, educators, and makers across the UK. Need setup support or print settings advice? Our in-house team of 3D printing specialists is here to help you get the most from every spool.
Print With Confidence. Print With Additive-X.
When you’re ready to move beyond basic materials, PET-CF is a step up that pays off. Strong, stiff, and impressively printable, it’s the filament you’ll return to for projects that matter. Explore our selection and discover a material that’s built to work as hard as you do.
