Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1982-07-15
1985-09-10
Beck, Shrive P.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
427195, 427406, 427410, 428418, B05D 302
Patent
active
045406375
ABSTRACT:
This invention relates to a process for the application of organic materials, such as powders, to hot dip or electroplated galvanized metal which provides a finished material with a higher level of corrosion resistance than that obtained from organic coatings on mild or black steel. Because of the natural corrosion protection properties of the zinc cladding of galvanized metal, no additional passivation of the substrate is necessary as is required with existing processes on mild or black steel. Also, the invention relates to the hot dip or electroplated galvanized metal which has been pretreated by the process of this invention prior to application of an organic powder coating. Hot dip or electroplated galvanized metal treated by this process leads to a uniform coating which is virtually impervious to acid, basic and salt solutions, and which will not scratch or flake off on impact.
REFERENCES:
patent: 3090696 (1963-05-01), Gemmer
patent: 3674445 (1972-07-01), Wlodek
patent: 3729294 (1973-04-01), Hibbs
patent: 3999957 (1976-12-01), Tongyai
patent: 4237192 (1980-12-01), Ito et al.
patent: 4305343 (1981-12-01), Long
Corrosion Commentary, Anti-Corrosion, 10/1978, p. 3.
Geary David F.
Honchar Dennis R.
Miller Robert P.
Baltimore Aircoil Company, Inc.
Beck Shrive P.
Bouton Charles E.
Brosius Edward J.
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