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Hoffmann Introduces Silfit Z 91, Aktifit AM & Aktifit VM Siliceous Fillers for Paints & Varnishes

Published on 2012-05-14. Author : SpecialChem

Hoffmann Group introduced its products Silfit Z 91, Aktifit AM and Aktifit VM for applications in elastomers, paint & varnish and thermoplastics.

Silfit Z 91 is a naturally occurring conglomerate of amorphous and crypto-crystalline silica with lamellar kaolinite, which has been subjected to a heat treatment. The components and the thermal process lead to a calcined product that offers special perfomance benefits as a functional filler.

Aktifit is an activated Silfit Z 91, produced by modifying the surface with functional silanes. 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, as they are potentially encountered with insitu mixing (direct addition of silane to the compound).

The Hoffmann Group

The Hoffmann Group is an association of individual and legally independent companies which work together through a Management Board, and Advisory Council and the shareholders of the group. Their independence is maintained and ensured by long-term preservation of assets and resources as well as by sound internal capitalization. The companies are managed decentrally and in operatively individual ways. Strategic controls, capital transfers and central services assist them in attaining their objectives.

Source: The Hoffmann Group

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