Over sixty years experience with AEROSIL®

Silicas are used in many applications

Fumed silica, which has been known commercially as AEROSIL® since 1943, is now manufactured in a wide range of variants that are sold to almost a hundred companies around the world.

Kloepfer originally developed fumed silica as an alternative to carbon blacks as a filler in auto tires. The breakthrough came in 1942 when he invented high-temperature hydrolysis, which allows the production of extremely fine silica. In the same year, Degussa - a predecessor of Evonik - obtained its first patent for the process. Industrial production started in 1944.

Continuous development of this product since its introduction has added a wide range of new variants to the product range. Today AEROSIL® is used to optimize the properties of a wide variety of products.