VESTAKEEP i4 G
Grade: i4 G
Overview
Implant-grade PEEK supplied with a long-term implant master file. Higher viscosity than ZA-500, favoured where machined stock and extruded profiles are the conversion route rather than molding.
- Implantable
- Machinable
- Autoclave durable
Technical datasheet
15% verified(14/94)This grade's datasheet has not been ingested yet. The structure below is complete, and each value fills in as we transcribe the producer technical data sheet and our engineering team reviews it. Nothing here is invented to fill the gap.
Identification
- Producer part number
- i4 G
- Nexeo material code
- Awaiting datasheet
- Resin family
- High-Performance Polymers
- Abbreviation
- Awaiting datasheet
- Color
- Awaiting datasheet
- Grade status
- Awaiting datasheet
Technical properties
| Property | Value | Unit | Test method | Conditions |
|---|---|---|---|---|
| Density | Awaiting datasheet | g/cm³ | ISO 1183 | 23 °C |
| Specific Gravity | Awaiting datasheet | — | ASTM D792 | 23 °C |
| Melt Flow Rate | Awaiting datasheet | g/10 min | ISO 1133 | — |
| Melt Volume Rate | Awaiting datasheet | cm³/10 min | ISO 1133 | — |
| Water Absorption (24 h) | Awaiting datasheet | % | ISO 62 | 23 °C, immersion |
| Water Absorption (equilibrium) | Awaiting datasheet | % | ISO 62 | 23 °C, saturation |
| Moisture Content at Molding | Awaiting datasheet | % | ISO 15512 | max before processing |
| Mold Shrinkage (flow) | Awaiting datasheet | % | ISO 294-4 | 60 × 60 × 2 mm plaque |
| Mold Shrinkage (cross-flow) | Awaiting datasheet | % | ISO 294-4 | 60 × 60 × 2 mm plaque |
| Bulk Density | Awaiting datasheet | kg/m³ | ISO 60 | as-supplied pellet |
0 of 10 physical properties verified against a producer datasheet.
Source: pending verification — awaiting Evonik technical data sheet.
15% verified · 14 of 94 properties confirmed against a producer datasheet.
Typical values for reference only — not a specification. Confirm against the current producer datasheet before designing to these numbers.
Chemical resistance
Chemical compatibility for this grade has not been assessed yet. Ratings are added as our applications engineering team reviews each resin family.
Ratings describe the resin's general behaviour, not your part. Moulded-in stress, wall section, temperature and applied load all change the outcome — qualify the finished device with your own cleaning and exposure protocol.
Sterilization compatibility
| Method | Compatible | Max dose / cycles | Property retention | Discoloration |
|---|---|---|---|---|
| Gamma irradiation | Compatible | Confirm with producer | Awaiting assessment | Awaiting assessment |
| E-beam | Compatible | Confirm with producer | Awaiting assessment | Awaiting assessment |
| X-ray | Awaiting assessment | Confirm with producer | Awaiting assessment | Awaiting assessment |
| Ethylene oxide | Compatible | Confirm with producer | Awaiting assessment | Awaiting assessment |
| Steam autoclave | Compatible | Confirm with producer | Awaiting assessment | Awaiting assessment |
| Vaporized hydrogen peroxide | Awaiting assessment | Confirm with producer | Awaiting assessment | Awaiting assessment |
| Dry heat | Compatible | Confirm with producer | Awaiting assessment | Awaiting assessment |
Maximum dose and cycle counts require producer validation data, so we show "Confirm with producer" rather than a figure. Retention and discoloration notes are qualitative. Sterilization must always be validated on the finished device.
Regulatory & compliance
- USP Class VIAwaiting confirmation
- ISO 10993-1 (biological evaluation)Yes
- ISO 10993-4 (blood interaction)Yes
- ISO 10993-5 (cytotoxicity)Yes
- ISO 10993-6 (implantation)Yes
- ISO 10993-10 (irritation / sensitization)Yes
- ISO 10993-11 (systemic toxicity)Yes
- FDA Drug Master FileAwaiting confirmation
- EU MDR statusAwaiting confirmation
- Food contact statusAwaiting confirmation
- REACH SVHCAwaiting confirmation
- RoHSAwaiting confirmation
- Animal-derived-free / TSE-BSEAwaiting confirmation
- DEHP-freeAwaiting confirmation
- Phthalate-freeAwaiting confirmation
- BPA-freeAwaiting confirmation
- Latex-freeAwaiting confirmation
- California Prop 65Awaiting confirmation
Compliance status reflects producer statements and grade records on file. Always confirm the current position with a signed regulatory statement letter for your specific device and market before submission.
Documents
- Technical Data SheetPDFRequest
- Safety Data SheetPDFRequest
- Certificate of Analysis (sample lot)PDFSign in to download
- FDA DMF reference letterPDFSign in to download
- Biocompatibility summaryPDFRequest
- Regulatory statement letterPDFRequest
- Change-notification policyPDFRequest
Documents marked “Request” are supplied on account. We link a download only when a real, current file is on file — never a placeholder that would 404.
Supply & logistics
Stocking, lead time and packaging for this grade are confirmed per order. Request a quote and the team responds with live availability rather than a figure that may be stale.
Processing & design notes
Primary process
Injection or extrusion
Supplied in grades suited to both molding and profile or tube extrusion — confirm the specific grade with the datasheet.
Structural role
High-performance structural polymer — load-bearing parts that must survive repeated sterilization.
Typically paired with
- Metal fasteners or inserts for assembly
- A lower-cost housing resin for non-critical parts
Engineering watch-outs
- Hygroscopic — dry to the producer-specified moisture level before molding to avoid hydrolytic degradation and splay.
- Always qualify the specific lot and grade against your own device master record and validation plan.
Qualitative guidance only. We don't publish processing windows — confirm melt and mold temperatures, drying, and shrinkage against the producer technical data sheet and your own part qualification.
- Supplier
- Evonik
- Certifications
- ISO 10993, FDA Master File
Test VESTAKEEP i4 G in your next build
Request a starter sample and our team will follow up with availability, documentation, and shipping details. No minimum order required for sampling.
Quote on request
Specialty grade — pricing varies by volume and lead time
All orders are reviewed by our sourcing team. Final pricing, lead time, and documentation (CoA, SDS) are confirmed before fulfillment.