Shaped for performance: the combination of lamellar zinc and mica improves the efficiency of zinc-rich primers

PEREYRA, A. M.; GIUDICE, C. A.

European Coatings Journal

Vincentz

Lugar: Hannover, Alemania; Año: 2007 p. 40 - 45

0930 3847

The aim of this paper was to formulate coatings based on alkaline silicates of high silica/alkali ratio, pigmented with lamellar zinc dust as corrosion inhibitor and with hydrated potassium and aluminum silicate (mica); this extender act as spacer between lamellar zinc particles to control their high galvanic activity. These coatings, with anticorrosive and non-flammable properties, are suitable for to use on metallic substrates as primers in multicoat systems. Key words: anticorrosive, non-flammable coating, inorganic silicates, lamellar zinc, mica.