VESTAKEEP®i4 3DF is perfectly suitable for additive manufacturing using fused filament fabrication (FFF) technology. This PEEK filament is an implant-grade material based on VESTAKEEP® i4 G, a highly viscous, high-performance polymer from Evonik impressing by its 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 to meet the requirements of ASTM F2026 (the standard specification for PEEK polymers for surgical implant applications).