| 摘要 |
This invention provides a coating for zinc coated steel surfaces and other zinc containing alloys, including zinc/iron, zinc/nickel, zinc/cobalt, zinc/aluminum, and any other suitable metal surface. The coating product of this inventions contains the following ingredients: copolymers made from acrylic, vinylacrylic, and acrylstyrene monomers, has carboxylic radicals from acrylic and/or methacrylic acids, and has an Ia of 30 to 60 mg. of KOH. The water soluble copolymers and lubricatory additives, which include natural or synthetic waxes, graphite, and molybdenum sulfide, are in solid form dispersed in aqueous solution at a ratio of from 1 to 10%.
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