Hoffmann Mineral is a manufacturer of Neuburg Siliceous Earth, a natural combination of corpuscular Neuburg Silica and lamellar kaolinite: a loose mixture impossible to separate by physical methods. As a result of natural aging, the silica portion exhibits a round grain shape and consists of aggregated primary particles of about 200 nm diameter. Such a unique structure is responsible for a relatively high specific surface area and oil absorption, which result, besides rheological activity, also in a whole range of application properties. Their manufacturing program includes the standard products Sillitin, Sillikolloid and puriss, the surface-treated Aktisil and the calcined products Silfit and Aktifit.
STRUKTOSIL 45 MAM is a special activated talc, produced by modifying the surface with a methacrylic functional group. The process parameters are selected in such a way that, on the one hand, anchoring to the surface takes place and, on the other hand, rel...view more
STRUKTOSIL 45 MAM is a special activated talc, produced by modifying the surface with a methacrylic functional group. The process parameters are selected in such a way that, on the one hand, anchoring to the surface takes place and, on the other hand, released by-products are removed as far as possible during production. Undesirable byproducts, such as occur during in situ mixings (i.e. during the direct addition of the additives), are therefore practically completely prevented and the material improves its hydrophobic properties. view less
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