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Home  > Markets & companies  > Raw materials market  > Evonik boosts capacity for special silicas...

Tuesday, 24 September 2019
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Markets & companies, Raw materials market

Evonik boosts capacity for special silicas at its Rheinfelden site

Thursday, 9 October 2014

Beginning in October 2014, Evonik Industries officially opened a new production line to manufacture surface-treated fumed silica.

At the opening of the new production line for Special Oxides. Source: Evonik

At the opening of the new production line for Special Oxides. Source: Evonik

The new line will be located at Evonik’s Rheinfelden, Germany site, which will boost their global production capacity for these products by 25 percent. "Aerosil" specialty silica grades enhance the properties of high-performance adhesives, sealants and industrial resins, as well as varnishes and paints. The key driver behind the soaring demand for these products is the development of resource efficient products and technologies. Market trends, including the development of renewable energy sources, and the automotive industry’s trend away from mechanical fasteners in favor of higher performance bonding will be supported by this expansion. Other significant applications using the specialty silica grades include defoamer, plastic and toner products.
Dr. Johannes Ohmer, head of the Inorganic Materials Business Unit in the Resource Efficiency section, sees the investment helping to further consolidate the specialised nature of the silica business: "Our new facility will reinforce our commitment to maintain the leading position we enjoy in the market for special oxides." Andreas Fischer, head of the Silica division, also commented on the official opening: "Our developments allow our customers to produce high-performance adhesives or unsaturated polyester resins for lightweight construction applications with minimal consumption of raw materials."

Among other qualities, fumed special silica grades improve rheology, viscosity and thixotropy of liquid and gel-like formulations as well as suspension properties of pigments and fillers they contain. They also boost the flow rate of powdery products and prevent caking during production and storage.

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