Composition for and method of monitoring dried-in-place non-chro

Coating processes – Foraminous product produced – Metal base

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C23C 2234

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active

055000533

ABSTRACT:
A process for measuring the coating weight of a dried-in-place non-chromate polyacrylamide/surfactant based conversion coating is disclosed. An ammonium hexafluorotitanate tracer added to such a conversion coating was found to not adversely affect coating properties. The tracer was found to remain proportional to the polymer matrix when the coating was analyzed by X-ray fluorescence.

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patent: 4191596 (1990-06-01), Dollman et al.
patent: 5122202 (1992-06-01), Dykstra
patent: 5129967 (1992-07-01), Sander
patent: 5158622 (1992-10-01), Reichgott et al.
patent: 5451270 (1995-09-01), Ouyang

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