Zirconium-vanadium conversion coating compositions for...

Details Zirconium-vanadium conversion coating compositions for... Zirconium-vanadium conversion coating compositions for...

2005-09-28

2010-10-19

King, Roy (Department: 1793)

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

C148S243000, C148S253000, C148S277000, C106S014110, C106S014120, C106S014210

Reexamination Certificate

active

07815751

ABSTRACT:
The invention provides a method and composition for coating a ferrous metal surface with a zirconium/vanadium conversion coating which is substantially free of an organic film forming composition and tannins. The method is a low temperature method which contemplates an aqueous conversion coating composition which is low in phosphates and which comprises zirconium, vanadium, fluoride, as well as phosphate ions in a ratio and a concentration effective for providing a conversion-coated ferrous metal surface.

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