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.
AKTIFIT Q is an activated SILFIT Z 91, produced by modifying the surface with a methacrylic silane. The by-products split off during the treatment reaction are largely removed during the production process which firmly attaches the silane to the filler su...view more
AKTIFIT Q is an activated SILFIT Z 91, produced by modifying the surface with a methacrylic silane. The by-products split off during the treatment reaction are largely removed during the production process which firmly attaches the silane to the filler surface. This helps minimize undesirable side effects, which are potentially encountered with in-situ mixing (direct addition of silane to the compound). view less
AKTIFIT PF 115 is an activated SILFIT Z 91, produced by modifying the surface with a special amino functional silane. The by-products split off during the treatment reac-tion are largely removed during the production process which firmly at-taches the sil...view more
AKTIFIT PF 115 is an activated SILFIT Z 91, produced by modifying the surface with a special amino functional silane. The by-products split off during the treatment reac-tion are largely removed during the production process which firmly at-taches the silane to the filler sur-face. This helps minimize undesira-ble side effects, as they are poten-tially encountered with in situ mix-ing (direct addition of silane to the compound). view less
AKTIFIT PF 111 is a calcined product, treated with alkyl silane. It is recommended for electrophoretic coatings, corrosion protection coatings, plastic primers, and interior dispersion paints.
AKTISIL AM is an activated SILLITIN Z 86, produced by modifying the surface with amino functional silane. Used as a functional filler either on its own or combined with extenders or flatting agents.
AKTISIL VM 56 is an activated SILLITIN Z 86, produced by modifying the surface with Vinyl-triethoxy silane. Used as a functional filler either on its own or combined with extenders or flatting agents.
AKTISIL PF 777 is an activated SILLITIN Z 86, produced by modifying the surface with alkyl silane. Used as a functional filler alone by itself, or in combination with rheological additives and/or flatting agents.
AKTISIL VM 56/89 is an activated SILLITIN Z 89, produced by modifying the surface with 3-Vinyltriethoxy silane. Used as a functional filler either on its own or combined with extenders or flatting agents.
AKTISIL MAM-R is an activated SILLITIN V 85, produced by modifying the surface with 3-methacryloxypropyl-trimethoxy silane. Used as a functional filler either on its own or combined with extenders or flatting agents.
AKTISIL MAM is an activated SILLITIN V 88, produced by modifying the surface with 3-methacryloxypropyl-trimethoxy silane. Can be used as a functional filler either on its own or combined with extenders or flatting agents.
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 elastomer...view more
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. view less
AKTIFIT VM is an activated SILFIT Z 91 that can be used as a functional filler either on its own or combined with extenders or matting agents. The best effect is achieved in binder systems which polymerize or cure due to a radically initiated reaction.
SILLITIN V 85 is a natural combination of corpuscular Neuburg Silica and lamellar kaolinite. Used as a functional filler either on its own or combined with extenders or flatting agents.
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