METHOD FOR COATING METALLIC SURFACES WITH A COATING AGENT CONTAINING A POLYMER,THE COATING AGENT,AND USES THEREOF
The invention relates to a method for coating metallic surfaces with an aqueous composition as a solution or as a dispersion, wherein the composition contains a) at least one phosphate, b) at least 0.1 g/L of at least one titanium and/or zirconium compound, c) at least one complexing agent, d) catio...
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Zusammenfassung: | The invention relates to a method for coating metallic surfaces with an aqueous composition as a solution or as a dispersion, wherein the composition contains a) at least one phosphate, b) at least 0.1 g/L of at least one titanium and/or zirconium compound, c) at least one complexing agent, d) cations of aluminum, chromium(III), and/or zinc and/or at least one compound containing aluminum, chromium(III), and/or zinc, and e) 1 to 500 g/L of at least one acid-tolerant cationic or nonionic organic polymer/copolymer, relative to the content of the solids and active substances in these additives. |
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