Press release
March 22, 2022

Evonik invests in new ROHACELL® production facility

Essen/Darmstadt. Evonik is investing a significant double-digit million Euro sum in a new, modern production facility for its high-performance foams for fiber composites manufactured in Darmstadt. At the same time, parts of the original production plant, which went into operation in 1972, will be shut down or extensively modernized. These measures will enable Evonik to continue to meet growing demand for its structural foams, for example from the aerospace industry.

Continuous growth  

Evonik's original production facility in Darmstadt has been manufacturing ROHACELL® structural foam, which is used as a core material for sandwich composite materials, for 50 years. Sales have risen steadily in recent years due to increasing market demand for lightweight components in a wide range of industries, including medical technology and sports applications to parts for the electronics industry and automotive and aircraft construction. ROHACELL® plays a role in emerging technology developments, such as high frequency equipment for 5G networks as well as the design of air taxis. In addition, the product range of high-performance foams will soon be expanded with new product developments beyond ROHACELL® polymethacrylimide structural foam.

With modern, state-of-the-art buildings and a production environment that meets the latest safety standards, Evonik is well equipped to meet growing customer demand and the high-quality requirements of industries such as aerospace and automotive. "With this contribution, Evonik continues on its path of investing in products that support sustainable solutions for our customers," says Dr. Claus Rettig, head of Evonik's Smart Materials Division. "Manufacturers in many industries want to efficiently produce high-performance lightweight components. Our high-performance foams for composites make this possible."

Continuous supply ensured in all regions

Production will continue at the existing plant in Darmstadt during the construction and modernization phase. The first new production plant will start operation in April 2022, and further plants will follow over the course of the year.

Production of the high-performance foam ROHACELL® began in 1972 in Darmstadt, Germany, later expanding into the Americas and Asia. Additional plants and regional teams are located in Mobile (Alabama, USA) and Shanghai (China) to support and supply customers in North and South America and Asia.


ROHACELL® is a rigid polymethacrylimide structural foam used in the design and manufacture of sandwich components in aerospace and aviation, automotive, marine, sports equipment, electronics and medical applications. The extremely lightweight foam can withstand high temperatures and high pressure, making it ideal as a core material for composite components. Because components can be manufactured quickly and efficiently with ROHACELL® cores, and they are ideal for automated manufacturing, they often enable more cost-effective production of composite parts compared to other core materials.

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 €15 billion and an operating profit (adjusted EBITDA) of €2.38 billion in 2021. Evonik goes far beyond chemistry to create innovative, profitable and sustainable solutions for customers. About 33,000 employees work together for a common purpose: We want to improve life today and tomorrow.

About Smart Materials

The Smart Materials division includes businesses with innovative materials that enable resource-saving solutions and replace conventional materials. They are the smart answer to the major challenges of our time: environment, energy efficiency, urbanization, mobility and health. The Smart Materials division generated sales of around €3.92 billion in 2021 with about 7,900 employees. 


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.