PEEK-Evonik Vestakeep i4G
To secure permanent bone-anchored biostability and eliminate stress-shielding effects in long-term human implants, Evonik’s Vestakeep i4G offers an unreinforced, high-viscosity polyetheretherketone (PEEK) matrix with unparalleled high purity. Featuring a density of 1.30 g/cm³ and compliance with ASTM F2026 and USP Class VI, this implantable grade exhibits a mechanical modulus close to cortical bone. Jucheng Precision, operating under strict ISO 13485 medical device certified systems, specializes in cleanroom molding of Vestakeep i4G. Using mirror-polished, rust-resistant S136 tool steel cavities, we ensure zero particulate contamination and optimal crystallinity, delivering high-purity medical implants verified by Zeiss CMM.
