Anticorrosive coating composition

An anticorrosive coating composition comprising at least one polysiloxane and metal particles and also at least one crosslinker, the coating composition crosslinking chemically at room temperature,

• wherein the polysiloxane has a weight-average molecular weight Mw in the range from 800 to 25 000 g/mol,
• wherein polysiloxane and crosslinker together form a reactive binder system
• wherein the fraction of the polysiloxane in the reactive binder system is more than 90 wt % and the complementary fraction of the crosslinker is less than 10 wt %,
• wherein the crosslinker is selected from the group of reactive silanes, silane hydrolysates, titanates, zirconates, organometallic compounds, acids and bases and mixtures thereof, and
• wherein the coating composition has a fraction of metal particles in the range from 70 to 98 wt %, based on the coating composition.