Benefits in paint and varnish systems

Filler properties		Effect in paint and varnish systems
loose structure, small particle size		quick and good incorporation, excellent dispersibility (especially puriss products), very little tendency towards sedimentation, no hard sediment, favorable rheological properties, matting effect, rapid drying, breathability, water vapor permeability, good corrosion protection, good pigment dispersion (spacer effect), reduced wet-edge strength, good sanding, excellent stone impact resistance, good mechanical properties (crack bridging)
non-ground filler, low grit content		low abrasivity
very low electrical conductivity (< 100 µS/cm)		no disturbing electrolytes, good bath stability in electrophoretic applications
no buffer effect		good stability in water based varnish systems
mineralogical composition (hardness)		scratch resistance, abrasion resistance
chemically inert		weather and chemical resistance, especially acids
similar refraction index as binder		very good transparency (for clear lacquer systems)
surface treatment possible		good bond filler to polymer