UL Prospector


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AKTIFIT AM is an activated SILFIT Z 91, produced by modifying the surface with amino functional silane. It is used as a functional filler either on its own or combined with extenders or matting agents. An optimum effect will be obtained in polar elastomers in combination with sulfur or sulfur donor, amine or bisphenolic crosslinking systems. This product can be used whenever high tensile strength and high modulus, combined with a very low tensile and compression set, are as important as excellent processing and extrusion properties.


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.

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