Non-chromate conversion coating treatment for metals

Details Non-chromate conversion coating treatment for metals Non-chromate conversion coating treatment for metals

2003-07-31

2008-03-18

King, Roy (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

C148S243000, C148S253000, C148S257000, C148S259000, C148S274000, C106S014120, C106S014150, C106S014160, C106S014410, C106S014420, C106S014440

Reexamination Certificate

active

07344607

ABSTRACT:
Chromate-free treatments and compositions, for applying a conversion or passivation coating to zinc coated metal surfaces. The compositions comprise a polyamidoamine/epihalohydrin polymer or cationic polyamine/epihalohydrin polymer component, fluoacid, H3PO4, and a film forming polymer latex component. The requisite metal surfaces are contacted by the compositions and dried. Rinsing is optional.

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