METHOD FOR TREATING AND/OR COATING SUBSTRATE WITH NON-CHROME MATERIALS
PROBLEM TO BE SOLVED: To provide a method for treating and/or coating a substrate with non-chrome materials.SOLUTION: There is provided a method for coating a substrate including: (a) applying a caustic cleaner onto at least a portion of the substrate; (b) rinsing at least a portion of the substrate...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method for treating and/or coating a substrate with non-chrome materials.SOLUTION: There is provided a method for coating a substrate including: (a) applying a caustic cleaner onto at least a portion of the substrate; (b) rinsing at least a portion of the substrate that has been subjected to the step (a) with water; (c) applying an acid cleaner onto at least a portion of the caustically cleaned substrate; (d) rinsing at least a portion of the substrate that has been subjected to the step (c) with water; and (e) applying a conversion coating including zirconium onto at least a portion of the acid cleaned substrate. In this method, at least one of the materials used in the steps (c) and (e) is substantially chrome free. There is also provided a substrate, such as an aluminum substrate, that has been coated using the aforementioned method. |
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