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Zinc-rich coatings: A market surveyZinc-rich coatings with both organic and inorganic binders were considered for coastal bridges which require more corrosion protection than inland bridges because of exposure to salt spray and fog. Inorganics give longer protection and may be applied without a finish coat; those currently available are harder to apply than organics. The NASA potassium silicate/zinc - dust coating appears to provide longer protection, resist thermal shock, and overcome the application problem. Panels coated with the formulation withstood 5308 hours in a salt spray chamber with no rusting or blistering.
Document ID
19750020137
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lizak, R.
(Stanford Research Inst. Menlo Park, CA, United States)
Date Acquired
September 3, 2013
Publication Date
August 1, 1975
Publication Information
Publisher: NASA
Subject Category
Metallic Materials
Report/Patent Number
NASA-CR-2585
Accession Number
75N28209
Funding Number(s)
CONTRACT_GRANT: NASW-2731
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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