Press release
January 27, 2021

New PEEK grade from Evonik for faster processing

Essen/Marl. Evonik is adding a high-viscosity material grade for injection molding and extrusion to the product range of its high-performance polymer PEEK. VESTAKEEP® 4500 G exhibits high melt stiffness, which simplifies processing during extrusion. Its rapid crystallization shortens the cycle time in injection molding, and the components are easy to eject and exhibit good dimensional stability.

Evonik produces and markets an extensive range of PEEK products, from low-viscosity to high-viscosity molding compounds, granules as well as powders, unreinforced as well as equipped with glass fibers and carbon fibers. The newly developed grade VESTAKEEP® 4500 G complements the high-viscosity variants with a product that has a higher crystallization rate and better flowability than VESTAKEEP® L4000 G, which is well known on the market. During processing, it also shows higher melt stiffness and better temperature resistance. Its inherent color is slightly lighter than the well-known molding compound. The combination of its properties makes VESTAKEEP® 4500 G suitable for many applications.

Thanks to their high temperature and chemical resistance, and their high ductility, the specialty polymers of the VESTAKEEP® brand can replace metal components to enable, for example, sophisticated lightweight construction applications. Evonik has more than 50 years of experience in the development and production of high-performance plastics. The extensive product portfolio includes solutions for almost all industrial applications.

Company information

Evonik is one of the world leaders in specialty chemicals. The company is active in more than 100 countries around the world and generated sales of €13.1 billion and an operating profit (adjusted EBITDA) of €2.15 billion in 2019. Evonik goes far beyond chemistry to create innovative, profitable and sustainable solutions for customers. More than 32,000 employees work together for a common purpose: We want to improve life, today and tomorrow.


In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.