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Germany: Additive Manufacturing Evonik Develops Implant-Grade Peek Filament from 3D Printing

| Editor: Ahlam Rais

Evonik has become the maiden company across the globe to launch a 3D-printable Peek (polyether ether ketone) filament as an implant-grade material for medical applications. The Peek filament is based on a highly viscous and high-performance polymer from Evonik.

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The natural-coloured Peek filament, which has a diameter of 1.75 mm, is wound on 250- or 500-gram spools suitable for direct use in standard FFF 3D printers for Peek materials.
The natural-coloured Peek filament, which has a diameter of 1.75 mm, is wound on 250- or 500-gram spools suitable for direct use in standard FFF 3D printers for Peek materials.
(Source: Evonik )

Germany – With this move, the specialty chemicals company is setting new standards for developing and manufacturing custom-made plastic implants, which can now be created using additive manufacturing processes that meet the requirements of ASTM F2026 (the standard specification for Peek polymers for surgical implant applications).

Sold under the brand name Vestakeep i4 3DF, this Peek filament is an implant-grade material based on Vestakeep i4 G, a highly viscous, high-performance polymer from Evonik. Customers will be impressed by the product’s biocompatibility, biostability, x-ray transparency, and easy handling. The filament is produced under cleanroom conditions and then subjected to stringent quality management standards for medical materials.

Peek Filament for Fused Filament Fabrication

The high-performance material was developed for fused filament fabrication (FFF) technology. The natural-coloured Peek filament, which has a diameter of 1.75 mm, is wound on 250- or 500-gram spools suitable for direct use in standard FFF 3D printers for Peek materials.

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“For modern medical technology, the development of our first 3D-printable implant material opens up new opportunities for customising patient treatments. Orthopedics and maxillofacial surgery are examples of areas where this could be applied,” says Marc Knebel, who heads the Medical Devices & Systems market segment at Evonik. “Innovative high-performance materials like Evonik’s Vestakeep Peek—along with highly complex hardware and software, and the perfect match between materials and machines—form the basis for a sustainable 3D-printing revolution in medical technology. Therefore, we will successively expand our product portfolio of 3D printable biomaterials.”

Testing Grade Enables Cost-Effective Process Adaptation

In addition to its implant grade, Evonik is also offering a testing-grade version of its Peek filament. The term refers to a class of material having the exact same product properties as the implant grade, but without the documentation needed for approval in medical technology applications. This offers a cost-effective way of adapting the processing characteristics of the high-performance plastic to a given 3D printer.

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