APPLICATION OF TYPE II CHEMICAL CONVERSION COATINGS (CCCS) USING FOAMING AGENTS
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United States of America Patent
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Sep 28, 2023
app pub date -
Mar 25, 2022
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Mar 25, 2022
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In one aspect, a spray foam chemical conversion coating includes a non-hexavalent chromium aqueous chemical conversion coating solution, a foaming agent, and a propellant. In another aspect, a method of producing a corrosion-resistant coating includes spraying a foam chemical conversion coating on a surface of a metal substrate, allowing the foam chemical conversion coating to react with the surface, and removing excess foam chemical conversion coating from the surface. The foam chemical conversion coating contains no hexavalent chromium.
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