VESTAKEEP® iC4520 G is an opaque, natural colored, high viscosity polyether ether ketone (PEEK) resin. It contains 20% barium sulphate to render it x-ray opaque.
Proven Biocompatibility
VESTAKEEP® iC4520 G is especially designed for long term implantable medical devices.
The compound composition is optimised for high biocompatibility and mechanical, thermal and chemical resistance.
Biocompatibility has been tested following ISO 10993-1 recommendations for permanent tissue/bone contact and USP Class VI.
A summary of biocompatibility is available upon request.
Biocompatibility reports available for VESTAKEEP® iC4520 GProcessing of VESTAKEEP® i-Grades
VESTAKEEP® iC4520 G can be processed by common melt processing techniques like injection molding and extrusion.
For injection molding, we recommend a melt temperature between 380°C and 400°C during the injection molding process. The mold temperature should be within a temperature range from 160°C to 200°C, preferably 180°C.Delivery of VESTAKEEP® i-Grades
VESTAKEEP® iC4520 G is supplied as cylindrical pellets in hobbocks containing 5 kg or 10kg. Polyethylene bags are used as primary packaging.
The results shown have been generated from a low number of production lots. Therefore, they are preliminary and not yet the result of a statistical evaluation. Therefore they must not be used to establish specifications.
Typical Applications
- spinal cages
- interference screws
- facial implants for facial bone fractures
- stents
- suture anchors
- access ports
- heart valves
- small joints
Benefits at a glance
- Biocompatibility
- Biostability
- Sterilization compatible
- Modulus similar to bone
- Wear comfort due to light weight and low thermal conductivity
- Lower stress-shielding effect
- No x-ray artifacts and/or adjustable opacity
- Metal-free
- Low water absorption
- Resistant to chemicals Injection molding and extrusion compatible
- Good processability and machinability