| 摘要 |
A composition for coating a metal substrate, comprising at least:… a) a particulate metal,… b) chromic acid and/or one of its derivatives,… c) boric acid and/or one of its derivatives,… d) a pH regulator such as zinc oxide (ZnO) or cobalt carbonate (CoCO3),… e) a solvent of high boiling point of the polyol or glycol ether type,… f) an organic cosolvent of specified solubility parameter,… g) a defoaming solvent of the white spirit or naphtha type,… h) a system of nonionic surfactants comprising at least one water-soluble surfactant and a surfactant soluble in white spirit, and… i) water. …<??>The invention also relates to metal substrates coated with the anticorrosion coating resulting from heating after the application of the composition to the substrate. |
