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Silfit Z 91 is a naturally occurring conglomerate of corpuscular Neuburg Silica and lamellar kaolinite, which has been subjected to a heat treatment. The components and the thermal process lead to a product that offers special performance benefits as functional filler.
The resulting products have an outstandingly high degree of white and color neutrality. Areas of application include high-voltage cables, light-colored rubber compounds, thermoplastics and as a partial replacement for titanium dioxide, especially in paints and varnishes.
All calcined products have a particle size that approaches that of the uncalcined basic material Sillitin Z 86.
The measuring method for this particle size distribution is based on the Fraunhofer analysis of diffraction spectra.
The analyses were performed with a Matersizer 3000, which is a laser device from Malvern Instruments.
| Name | Short description |
|---|---|
| SILFIT Z 91 | Calcined product based on Sillitin Z 86. |