Systems and Methods for Treating a Metal Substrate
AssigneePRC-DeSoto International, Inc.
InventorEric L. MORRIS
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Abstract
Disclosed is a conversion composition containing a trivalent chromium cation in an amount of 0.001 g/L to 20 g/L. Also disclosed is a system for treating a metal substrate that includes the conversion composition and a sealing composition comprising a lithium cation. Also disclosed is a method for treating a metal substrate that includes contacting at least a portion of a surface of the substrate with the conversion composition and then contacting at least a portion of the surface of the substrate with the sealing composition. Also disclosed is a substrate obtainable by treatment with the system and/or obtainable by the method of treating.
Claims20
A system for treating a metal substrate comprising:
- a conversion composition comprising a trivalent chromium cation in an amount of 0.001 g/L to 20 g/L;
- and
- a sealing composition comprising a lithium cation.
A method of treating a substrate comprising:
- contacting at least a portion the substrate surface with a conversion composition comprising a trivalent chromium cation in an amount of 0.001 g/L to 20 g/L;
- and
- contacting at least a portion of the substrate surface with a sealing composition comprising a lithium cation.
Dependencies are inferred from the claim text.