abstract |
Cleaned metal surfaces are coated with an aqueous anti-corrosion treatment. The anti-corrosion treatment includes an organofunctional silsesquioxane and a fluoro metallic acid such as H 2 TiF 6 , H 2 ZrF 6 , as well as others and blends. The metal surface can be rinsed immediately after coating, making this anti-corrosion treatment suitable for preparing a metal surface for electrocoating. |