According to the different corrosive environments, what kinds of anti-corrosion coatings can be divided into?

       According to different corrosive environments, anti-corrosion coatings can be divided into;

    1) Atmospheric corrosion resistant coating

    (1) Industrial atmospheric corrosion resistant coating. Such coatings must protect substrates exposed to smoke and chemical fumes in large urban and heavy industrial plant environments.

    (2) Coatings resistant to corrosion in marine atmospheres. Such coatings must protect the substrate material in environments close to shore or other saline objects.

    (3) Rural atmospheric corrosion resistant coating. Such coatings must protect the substrate material exposed to the inland environment.

    2) Dipping corrosion resistant coating

    (1) Potable fresh water resistant coating. Such coatings must protect the substrate material exposed to drinking water, and the coating must not alter the properties of the drinking water.

    (2) Non-potable fresh water resistant coating. These coatings must protect substrate materials exposed to non-potable fresh water. The water temperature should not exceed 52 degrees Celsius, and the pH value range should be between 5 and 10.

    (3) Heat-resistant fresh water coating. Such coatings must withstand water temperatures in excess of 52°C up to steam as high as 204°C, and the pH should range from 5 to 10.

    (4) Salt water resistant coating. Such coatings are corrosion resistant to saline media. Part or whole (or both) of the sprayed workpiece is exposed to static or moving seawater (or salt water).

    (5) Chemical and food processing corrosion resistant coating. These coatings have properties that inhibit chemicals (such as petroleum, fuel or solvents) and food attack, but their chemical composition and taste will not change.

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