| 摘要 |
This invention provides an improved composition and process for pretreatment aluminum prior to electroplating. The invention is an aqueous composition comprised of an acid, an oxidizing agent, and, optionally, a halogenated compound. This composition is useful in a process that effectively removes smut that results from the etching step of the aluminum pretreatment process. Alternatively, the composition can be used in a process which combines the etch and desmut steps in Al pretreatment.
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