Method of preparation of a surface-coated metal-made ornamental

Details Method of preparation of a surface-coated metal-made ornamental Method of preparation of a surface-coated metal-made ornamental

1989-10-19

1992-02-25

Beck, Shrive

Coating processes

Applying superposed diverse coating or coating a coated base

Metallic compound-containing coating

4273764, 427387, 4273978, 4274196, 106600, 428429, 428433, 428447, B05D 714

Patent

active

050912240

ABSTRACT:
A metal-made ornamental article, such as watch cases and the like, is provided with a bilayered coating layer composed of an undercoating layer of a specified thickness formed from an aqueous colloidal solution of sodium silicate and silica sol in a specified proportion and a top-coating layer of a specified thickness formed by coating with a solution of a partial hydrolysis-condensation product of an organic silicate ester compound, such as ethyl silicate, followed by baking to effect curing of the coating layer.

REFERENCES:
patent: 4355135 (1982-10-01), January

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