Method of producing organic composite-plated steel sheet

Details Method of producing organic composite-plated steel sheet Method of producing organic composite-plated steel sheet

1991-11-13

1994-04-19

Beck, Shrive

Coating processes

Applying superposed diverse coating or coating a coated base

Synthetic resin coating

427405, 427416, 4274191, B05D 136

Patent

active

053044010

ABSTRACT:
The present invention provides a method for producing a highly corrosion resistant organic composite-plated steel sheet which is inhibited from liberation of chromium, which comprises forming a chromate film comprising a composition of the following (A) as a first layer at a coating amount of 5-150 mg/m.sup.2 as a solid film on the surface of a zinc or zinc alloy plated or zinc composite alloy plated steel sheet and then, coating on the first layer an organic solvent coating composition of the following (B) as a second layer at a thickness of 0.3-5 .mu.m as a solid film.

REFERENCES:
patent: 4756935 (1988-07-01), Takimoto et al.
patent: 4876160 (1989-10-01), Shindou et al.

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