Anticorrosion coating composition, coating film comprising the composition, laminate and structure provided with the coating film, and additive for anticorrosion coating

摘要

PROBLEM TO BE SOLVED: To provide an anticorrosive coating composition which (1) is useful as an organic zinc-rich paint that provides a coated film having a slip factor of 0.45 or more, (2) can keep glossiness of a top coat layer when an undercoat layer, a middle coat layer and the top coat layer are recoated in this order on the coated film, and (3) is excellent in storage stability; a coated film formed from the composition; a laminate and a structure having the coated film; and an additive agent for anticorrosive coating.SOLUTION: An anticorrosive coating composition contains an organic resin, zinc powder having an average particle diameter of 1-30 μm and hollow particles having 90% cumulative average diameter din terms of volume of 60 μm or less, where a pigment volume concentration (PVC) being the volume concentration of the total of the zinc powder and the hollow particles in a nonvolatile component contained in the composition is 58% or more, and an amount of particles having a particle diameter of 10 μm or more contained in the total in the nonvolatile component is 34 vol% or more, or a slip factor of the coated film formed of the composition is 0.45 or more.SELECTED DRAWING: None