Addigy® F2045

The flexible solution

Bio-based thermoplastic copolyester that prints soft, highly flexible applications twice as fast compared to TPU.

Addigy® F2045 is a thermoplastic copolyester (TPC) with unique properties such as resistance against high temperatures due to long term thermo-oxidative stability. The material is highly elastic with Shore D of 34 and does not show cracking or loss in gloss under UV exposure. Half of Addigy® F2045 material originates from bio-based feedstock.

Ideal for soft, flexible applications, this material prints twice as fast when compared to TPU. It combines easy and fast printing with high performance characteristics enabled by excellent inter-layer adhesion due to its slower crystallization behavior. Addigy® F2045 has excellent energy return - 20-30% higher when compared to TPU and EVA.

The natural colored filament passes ISO 10993-10 Irritation/Intracutaneous reactivity testing, ISO 10993-5 Cytotoxicity testing and USP class VI tests for medical implants.


  • Shoe in-soles, midsoles
  • Protective sport equipment such as mouthguards and glasses
  • Wearables such as earbuds and smartwatch bands
  • Flexible tools and electronics
  • Prosthetics, splints
  • Gaskets, tubes, wipers                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

Product Features

  • 50% of the material originates from bio-based feedstock
  • Passed USP class VI for medical implants and ISO qualifications for irritation and cytotoxicity
  • Tested on multiple open platform FFF machines
  • Highly elastic material for soft, flexible applications
  • High UV and chemical resistance
  • Excellent energy return
  • Fast print speed
  • Available in natural, black and gray; 2.85 and 1.75 diameters

How customers use our material

Customized protective mouthguards

Arno Hermans, founder of 3Dmouthguard, Covestro and Mass Portal collaborate to create 3D printed mouthguards with Arnitel material that is safe for use in the oral cavity.

Custom orthotics and prosthetics with 3D printing

ProReva, Twikit and Ultimaker collaborate to create a comprehensive digital workflow to produce customized, personalized 3D printed orthotics and prosthetics. 

BAC Mono R supercar transformed with additive manufacturing

Briggs Automotive Company (BAC) collaborated with Covestro to improve the performance and design of the Mono R. Together, the companies built a lighter and less expensive Formula 1-inspired ram-air inlet system, improved the aerodynamic design of its custom-made mirror brackets and created durable steering wheels with custom grips.

Custom end-of-arm tooling transformed with 3D printing

BDI Additive, JuggerBot 3D and Covestro utilized 3D printing to transform end-of-arm tooling and make manufacturing customizable, faster and low cost.

How can we help?

Get in touch with our experts to discuss how Covestro can help you tap into the full potential of additive manufacturing.