Product PropertiesDue to sustained developments in process technology and manufacturing equipment, HOFFMANN MINERAL has continuously improved its family of Neuburg Siliceous Earth based products and their properties for a host of old and new applications, often confidentially responding to specific demands and challenges from customers. This actual product range includes processed natural minerals such as Sillitin and Sillikolloid, and the treated or refined Aktisil versions. 
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ElastomersThe numerous applications of Neuburg Siliceous Earth in elastomers include rubber articles for the automotive and construction, machinery and equipment industries, pharmaceutical rubber goods and compounds for the cable and general electrical industry. Aside from the Neuburg Siliceous Earth grades Sillitin and Sillikolloid, which mainly differ with respect to their particle size distribution, use also is often made of the surface treated Aktisil grades. Compared with untreated Neuburg Siliceous Earth grades, the Aktisil grades in many applications impart further improved properties.
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Paint and VarnishNeuburg Siliceous Earth is a natural combination of corpuscular, crypto-cristalline and amorphous silica and lamellar kaolinite: a loose mixture impossible to separate by physical methods. As a result of natural formation, the silica portion exhibits a round grain shape. This characteristic is at the origin of further benefits of Neuburg Siliceous Earth for applications in paints and varnishes.
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Toll ManufacturingFor four generations and more than a hundred years we have felt committed to give our best to our customers and products. To enable this to remain so in the future, we are investing our entire know-how in the further development of a pioneering and innovative service segment: toll manufacturing at HOFFMANN MINERAL.
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Health and SafetyWe care for your health and safety.
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