MD&M 2010 Presentation: Material Selection Criteria and Injection Molding of PEEK

    • Reference:
    • Kostecki, K. Making the Donuts: Material Selection Criteria and Injection Molding of PEEK Optima Materials. Presented at the 2010 MD&M Meeting in Minneapolis, MN, October 12, 2010.
    • Keywords:
    • PEEK, OPTIMA, Processing, Injection molding, grade selection
    • Permissions:
    • The PDF of this presentation is made available on with the permission of the author.

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This presentation will covers both grade selection and processing of implantable PEEK materials.

Numerous physcial, mechanical, and processing requirements, as well as application driven properties must be considered in seleting the proper grade of PEEK. This portion of the presentation identifies these considerations in order to guide those specifying materials to an informative material decision.

The second part of the presentation provides an overview of key PEEK processing considerations that will help guide those producing implantable PEEK components around common pitfalls, and will aide in successful manufacturing.


Ken Kostecki, Technical Support Manager, Invibio

In his current position, Mr. Kenneth M. Kostecki is responsible for all US Technical Support for Invibio, Inc, makers of PEEK-OPTIMA® and PEEK-CLASSIXT Class XII, and Class VI medical grade materials.

His primary function is to provide technical support to Invibio's customers in the Orthopedic, Spine, Dental, Cardiac, and Neurological Industries. In this role he is tasked with providing design and process troubleshooting support for injection molding, machining, extrusion, compression molding, and other processing methods.

Prior to his position at Invibio, Kenneth held positions at GE/Momentive Silicones where he undertook the role of Field Applications Engineer, and at Sanford/Newell-Rubbermaid where he served as a Materials Engineer for all Sanford product brand lines. Furthermore, at the start of his professional career, he completed the Engineer in Training Program at Phillips Plastics Corporation, which provided him with a knowledge of the properties and processing of a wide array of commodity and engineering grade thermoplastic Resins.

Kenneth holds a degree in Composite Materials Engineering from Winona State University, where he graduated in 2001. Most recently in 2009, he completed his MBA studies and graduated at the top of his class from the University of Wisconsin-Whitewater, with an emphasis in Management.