by SpecialChem

VESTAKEEP® i4 G

Technical Datasheet | Supplied by Evonik

VESTAKEEP® i4 G by Evonik is a high viscosity, biocompatible polyether ether ketone (PEEK) grade. Exhibits extra high purity and extended quality measures. It is suitable for processing by injection molding and extrusion. VESTAKEEP® i4 G complies with ASTM F2026 for surgical implant applications. It is recommended for permanent tissue/ bone contact.

VESTAKEEP® i4 G Properties

Thermal Properties

Value & Unit

Test Condition

Test Method

Deflection Temperature at 1.8 MPa (264 psi)

150 °C

(Method A)

ISO 75-1

Melting Point

340 °C

(2nd heating, DSC)

ISO 11357

Deflection Temperature at 0.46 MPa (66 psi)

205 °C

(Method B)

ISO 75-2

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