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Non-toxic corrosion resistant conversion coating for aluminum and aluminum alloys and the process for making the same

  • US 5,399,210 A
  • Filed: 02/03/1993
  • Issued: 03/21/1995
  • Est. Priority Date: 09/03/1991
  • Status: Expired due to Fees
First Claim
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1. A process for producing a corrosion resistant chemical conversion coating on aluminum and aluminum alloys comprising subjecting a cleaned, degreased and deoxidized aluminum to an alkaline solution containing sodium molybdate, sodium nitrite and sodium metasilicate.

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