Press release
Coating Additives
June 27, 2024

Evonik commissions new plant for AEROSIL® Easy-to-Disperse silicas at Rheinfelden site

Evonik has commissioned a plant for an innovative dispersion technology for fumed silica at its Rheinfelden site.

  • AEROSIL® Easy-to-Disperse enables easier, faster and more sustainable formulation of paints and coatings.
  • Capacity expansion in Rheinfelden strengthens global availability for high-quality silica.
  • Expansion marks next step in providing eco-friendly solutions to the paint and coatings sector.


Rheinfelden. Evonik has commissioned a plant for an innovative dispersion technology for fumed silica at its Rheinfelden site. This strengthens the specialty chemicals company’s position as a leading supplier of high-quality silicas from the AEROSIL® family.

The new system is tailored for the production of AEROSIL® Easy-to-Disperse (E2D) products. This technology simplifies the incorporation of silica as a rheology additive into paint and coating formulations.

“The commissioning of the AEROSIL® E2D technology demonstrates our commitment to the Rheinfelden site, where we have been successfully producing fumed silica for decades,” says Dr. Stefan Fiedler, Head of the AEROSIL® operating group in Rheinfelden. “This not only ensures quality, but also increases the global availability of our products.”

AEROSIL® E2D fumed silica products offer excellent dispersibility, which simplifies and increases the efficiency of the paint and coating manufacturing process. Traditionally, the dispersion of rheology additives such as fumed silica has been an energy- and time-intensive process. AEROSIL® E2D technology reduces this step to a single operation.

“Our AEROSIL® E2D products offer our customers improved process efficiency as well as optimized end-product performance,” says Dr. Oliver Kroehl, Head of Silica at Evonik Coating Additives, highlighting the benefits of the technology. “The main benefit for our customers is the accelerated dispersion of the silica, yielding significant savings in time, energy, and costs, and consequently CO2 emissions. This enables our customers to develop more advanced and sustainable coating solutions.”

The new plant in Rheinfelden is part of Evonik's continued investment in coating and ink additives, with a particular focus on the development of environmentally friendly and sustainable products.

Evonik's Coating Additives Business Line offers a wide range of specialty additives for coatings and printing inks. The business has decades of experience in developing products for a range of coating markets, including decorative coatings, industrial coatings, automotive coatings and printing inks.

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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 €15.3 billion and an operating profit (adjusted EBITDA) of €1.66 billion in 2023. Evonik goes far beyond chemistry to create innovative, profitable, and sustainable solutions for customers. More than 33,000 employees work together for a common purpose: We want to improve life today and tomorrow.

About Specialty Additives

The Specialty Additives division combines the businesses of versatile additives and high-performance crosslinkers. They make end products more valuable, more durable, save more energy and simply better. As formulation experts in fast growing markets such as coatings, mobility, infrastructure and consumer goods, Specialty Additives combines a small amount with a big effect. With its 3,500 employees the division generated sales of €3.52 billion in 2023. 


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.