Protective coating system for aluminum

Details Protective coating system for aluminum Protective coating system for aluminum

1991-05-16

1992-04-14

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Forming nonelectrolytic coating after forming nonmetal...

205201, 205206, 205208, 205224, C25D 544

Patent

active

051045141

ABSTRACT:
Aluminum articles are provided with enhanced surface protection by initially abrading the surface to produce a surface microroughness of 400-700 microinches (RMS), and hard anodizing the roughened surface to a depth of at least 0.0020 inch. The anodized surface is then coated with a protective material to a thickness of 0.0005-0.015 inch. The protective coating materials may be fusible polymers which are fused on the surface or fluid organic coating compositions which are dried on the surface.

REFERENCES:
patent: 4086114 (1978-04-01), Karol
patent: 4568573 (1986-02-01), Sunoda et al.
patent: 4589972 (1986-05-01), Pompea et al.
patent: 4624752 (1986-11-01), Arrowsmith et al.
F. A. Lowenheim, Electroplating, McGraw-Hill Book Co., New York, 1978, pp. 52-475.
H. Silman et al., Protective and Decorative Coatings for Metals, Finishing Publications, Ltd., Teddington, Middlesex, England, 1978, p. 485.

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