A raw material was created which – wherever one looks for it on this earth - is totally unique. A natural combination of corpuscular Neuburg Silica and lamellar kaolinite: a loose mixture impossible to separate by physical methods. The silica portion exhibits a round grain shape and consists of aggregated primary particles of about 200 nm diameter.
|Sillitin / Sillikolloïd||Standard products (natural, untreated fillers). Differ in brightness and particle size distribution.|
|Puriss||Created by a downstream process. The extremely low residue > 40 μm is reduced even more and the dispersion properties are improved.|
|Aktisil||Surface-treated products. Neuburg Siliceous Earth treated with chemical agents, mostly silanes.|