What are the characteristics of chemical corrosion resistant coatings?

       (1) This type of coating can withstand the corrosion of various acids, alkalis, salts, solutions, steam and solids.

     (2) Such coating materials are mainly various iron-based, nickel-based and cobalt-based alloys, self-fluxing alloys, non-ferrous metals, oxide ceramics, cermets such as chromium carbide and tungsten carbide.

     (3) Since the thermal spray coating has a certain porosity, various coatings must be filled and sealed. The sealant itself must also be resistant to corrosion by chemical media. The type of sealant used must be determined according to the specific use environment. The use of special sealants will not damage the mechanical properties of the coating.

     (4) The ability of the coating to resist chemical corrosion at high temperatures depends to some extent on the sealant.

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