Galvanizing refers to the surface treatment technology of plating a layer of zinc on the surface of metals, alloys or other materials in order to play the role of beauty, rust prevention and so on. The main method used by Tianjin galvanizing factory is hot dip galvanizing.

     Zinc is soluble in acid and alkali, so it is called amphoteric metal. Zinc is almost unchanged in dry air. In humid air, zinc surface will generate dense alkaline zinc carbonate film. In containing sulfur dioxide, hydrogen sulfide and marine atmosphere, zinc corrosion resistance is poor, especially in the high temperature and high humidity containing organic acids in the atmosphere, zinc plating easy to be corroded.

     Zinc's standard electrode potential of -0.76V, on the steel substrate, zinc coating belongs to the anodic coating, it is mainly used to prevent corrosion of steel, its protective properties of the advantages and disadvantages of the thickness of the coating is very large. Tianjin galvanizing plant zinc coating by passivation treatment, dyeing or coating light protection agent, can significantly improve its protective and decorative.