Claims
- 1. A process for monitoring the coating weight of an anionic polyacrylamide/surfactant based metal treatment comprising:
- a. adding ammonium hexafluorotitanate in concentrations ranging from 0.1 to 10% by weight of treatment to an anionic polyacrylamide/surfactant based treatment solution in an amount sufficient to allow detection;
- b. treating a metal surface with said combination;
- c. subjecting the treated surface to X-Ray fluorescence to detect titanium in the coating wherein titanium detected by X-Ray fluorescence is proportional to the coating weight.
- 2. The process of claim 1 wherein said metal is selected from the group comprising, cold rolled steel, zinc, galvanized metal and zinc-aluminum galvanized metal.
- 3. An aqueous solution for coating a metal surface consisting essentially of an anionic polyacrylamide copolymer, a surfactant and ammonium hexafiuorotitanate.
- 4. The aqueous solution of claim 3 wherein said surfactant is a nonionic or cationic suffactant.
- 5. The aqueous solution of claim 3 wherein said anionic polyacrylamide is present in a concentration of from about 0.05% to 2%, the surfactant is present in a concentration of from about 0.25 to 20%, and the ammonium hexafluorotitanate is present in a concentration of from about 0.1 to 10%.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 213,414 filed Mar. 15, 1994, now U.S. Pat. No. 5,401,333.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
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213414 |
Mar 1994 |
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