Zinc phosphate conversion coating and process

Details Zinc phosphate conversion coating and process Zinc phosphate conversion coating and process

1991-07-29

1993-11-16

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

C23C 2286

Patent

active

052619737

ABSTRACT:
Zinc phosphate coatings for metal surfaces and phosphating process. Concentrates containing (a) hydroxylamine sulfate and (b) zinc, nickel, manganese and phosphate ions are formulated into aqueous coating solutions for treating metal surfaces, including ferrous, zinc and aluminum surfaces.

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patent: 4865653 (1989-09-01), Kramer

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