Can PEEK be autoclaved?

Yes, per supplier literature. Solvay reports KetaSpire PEEK can withstand over 1,000 steam sterilization cycles without significant loss of mechanical properties; Invibio states PEEK-OPTIMA can be repeatedly sterilized by steam, EtO or gamma without degradation in mechanical properties; Victrex describes 450G as suitable for steam sterilisation.

The table shows PEEK grades whose source states steam/autoclave compatibility. VESTAKEEP M4G (Evonik) is also in MedResin, but its source doesn't state autoclave compatibility; see its grade page.

The table shows PEEK grades whose source states steam/autoclave compatibility. VICTREX PC (family) (Victrex) is also in MedResin, but its source doesn't state autoclave compatibility; see its grade page.

Data comes from public supplier literature (cited on each grade page). A blank cell means not stated in the source, not "no". Always confirm with the supplier's current documentation before use.

5 matching grades in MedResin

Grade	Maker	Family	USP VI	ISO 10993	Gamma	EtO	Autoclave	FDA file
Zeniva ZA-600	Syensqo (Solvay)	PEEK		✔	✔	✔	✔	MAF
PEEK-OPTIMA (family)	Invibio (Victrex)	PEEK			✔	✔	✔
VESTAKEEP Care M20 G	Evonik	PEEK	✔	✔	✔	✔	✔
VESTAKEEP Care M33 G-HP	Evonik	PEEK	✔	✔	✔	✔	✔
VESTAKEEP Care M40 G	Evonik	PEEK	✔	✔	✔	✔	✔

Sources: Solvay sterilization overview · Invibio PEEK-OPTIMA fact sheet · Victrex 450G datasheet

Common questions

How many autoclave cycles can PEEK withstand?

Solvay reports KetaSpire PEEK can withstand over 1,000 steam sterilization cycles without significant loss of mechanical properties.

Are other PEEK grades listed in MedResin?

Yes: VESTAKEEP M4G (Evonik) and VICTREX PC (family) (Victrex). Their source does not state autoclave compatibility, so they are not in the table above. Check with the manufacturer.

Grade data last checked 2026-10-16. Blank cells mean not stated by the source. About the data