Properties and applications: SIPERNAT represents a specific product range of precipitated silica, aluminum and calcium silicates. SIPERNAT FPS 5 is an extremely fine ground silica with medium surface area and a high absorption capacity. It is designed to adjust thixotrophy/viscosity and reduces the porosity in unsaturated polyester resins (gel coats). Applied in thin films, it generates a proper antiblocking effect. Its high purity makes it an ideal flow aid for food ingredients. In offset printing inks it is suitable extender. Its matting efficiency makes it useful for water-based printing inks.Information provided by Evonik |