The solution (DACRODIP) used for the DACROTIZED® coating is a water-based dispersant containing metallic zinc flakes, chromic anhydride, glycol, etc. Soaking the target substrate in DACRODIP and heating the solution to approximately 300°C in an oven will reduce the by-production of hexavalent chromium by organic substances such as glycol. The resulting water-insoluble amorphous nCrO3·mCr2O3 is used as a binder that joins together the zinc flakes, which are laminated in several dozen layers, to produce a coating film. The chromic anhydride in DACRODIP also oxidizes and chemically bonds with the metal surface, thereby achieving a high degree of adhesion. The anti-corrosive mechanism of the DACROTIZED® coating film consists of the controlled galvanic protection action of zinc particles, the passivation of base metal by chromic acid and the barrier effect of zinc flakes and chrome compounds, all of which combine for a level of corrosion resistance that no ordinary coating can offer.