| abstract |
A composition and process for treating metal surfaces that contain at a weight ratio from 1:5,000 to 5,000:1 of at least one metal acetylacetonate selected from the group consisting of Al(C 5 H 7 O 2 ) 3 , V(C 5 H 7 O 2 ) 3 , VO(C 5 H 7 O 2 ) 2 , Zn(C 5 H 7 O 2 ) 2 , and Zr(C 5 H 7 O 2 ) 4 , and at least one compound selected from water-soluble inorganic titanium compounds and water-soluble inorganic zirconium compounds, provides a non-chromate-type composition for imparting an excellent corrosion resistance and paint adherence to the surface of metals, particularly aluminum and its alloys, magnesium and its alloys and zinc and its alloys. |