RINSABLE METAL PRETREATMENT METHODS AND COMPOSITIONS

Chromate-free and metal phosphate free treatments and compositions for applying a conversion or passivation coating for metals, more particularly, steel, zinc coated steel, and aluminum surfaces. The methods of the invention comprise contacting the requisite metal surface with a treatment compositio...

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Bibliographische Detailangaben
Hauptverfasser: MELZER, JEFFREY, I, CARTER, CHRISTOPHER, M, ENGEL, DAVIDL, B, CHISHOLM, BRET, CAREY, WILLIAM, S, RODZEWICH, EDWARD, A, DECK, PHILIP, D, WHISENHUNT, DONALD, W., JR
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Chromate-free and metal phosphate free treatments and compositions for applying a conversion or passivation coating for metals, more particularly, steel, zinc coated steel, and aluminum surfaces. The methods of the invention comprise contacting the requisite metal surface with a treatment composition comprising a member or members comprising one or more Group IV B elements, fluoride, and phosphonic acid or phosphonate. Optionally, a silane may be added as a treatment component.