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US 2011/0300406 A1Published application
Painted metal parts with non-hexavalent chromium chemical conversion coating and process
AssigneeAllfast Fastening Systems, Inc.
InventorROBERT J. DEES
Life of this patent
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Abstract
A method including forming a first layer comprising a non-hexavalent chromium chemical conversion coating on a metal surface; and forming a second layer on the first layer through a sol gel process. An apparatus including a metal component having at least one surface; a first layer comprising a chemical conversion coating on the at least one surface; and a second layer derived from a sol gel composition on the first layer.
Claims12
A method comprising:
- forming a first layer comprising a non-hexavalent chromium chemical conversion coating on a metal surface;
- and
- forming a second layer on the first layer through a sol gel process.
An apparatus comprising:
- a metal component having at least one surface;
- a first layer comprising a non-hexavalent chromium chemical conversion coating on the at least one surface;
- and
- a second layer derived from a sol gel composition on the first layer.
1 more element
Dependencies are inferred from the claim text.