Inorganic phosphate corrosion resistant coatings

An anti-corrosion, acid phosphate technology, used in anti-corrosion coatings, metal material coating processes, cement coatings, etc., can solve problems such as toxic gas, environmental waste disposal, and wear resistance of passivation layers.
CN102770583AActive Publication Date: 2012-11-07LATITUDE 18
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LATITUDE 18
Publication Date
2012-11-07

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Abstract

This disclosure relates to phosphate coatings that inhibit corrosion of metals, specifically coatings comprising acidic phosphate and alkaline metal oxide / hydroxide components. In one particular embodiment, phosphate-based coating formulations that reduce or eliminate corrosion of steel and other metals are disclosed. In other embodiments, methods for coating steel surfaces with acidic phosphate and alkaline metal oxide / hydroxide components to reduce or eliminate corrosion of the metal surfaces are disclosed.
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Description

technical field

[0001] The present disclosure relates to coatings comprising acid phosphate and alkali metal oxide / hydroxide components that inhibit corrosion of metals, and in particular to methods of making and coating on metals. Background technique

[0002] Corrosion of structural steel and other metals is a serious problem in the construction industry and utilities. Steel deteriorates when exposed to moisture and salty environments, especially at high temperatures. To minimize or reduce the extent of this corrosion, steel alloys are used, such as galvanized (zinc-coated) compositions or chrome-plated compositions. Although this method can solve the problem in the short term, the problem still exists when the steel is exposed to the above-mentioned environment for a long time. The present invention discloses particularly suitable phosphate-based composite coatings that minimize or reduce corrosion of steel or other metals and eliminate the need for the use of steel all...

Claims

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