Bigely trivalent chromium galvanized black passivation solution BZ-216 is a black passivate designed for pickled zinc deposits in the galvanizing process. It produces a dense, homogeneous and highly corrosion resistant black passivate film on the galvanized surface, which enhances the decorative and protective properties of the coating.
First of all, an important reason for using BZ-216 is its ability to significantly increase the blackness of the passivate layer. Specific components of the trivalent chromium passivate react with the zinc surface to form complex chemical bonds. These bonds give the passivate layer not only a high degree of blackness, but also a bright surface texture.
In addition, the use of appropriate passivation processes and formulations can effectively enhance the corrosion resistance of the coating. Trivalent chromium galvanized black passivation solution BZ-216 contains a variety of chemical components that interact with zinc to not only improve the blackness of the film, but also to enhance the corrosion resistance of the passivate layer. Especially when used with a sealer, the neutral salt spray test resistance to white rust can reach more than 72 hours, which means that the coating can remain rust-free for a longer period of time in harsh environments, thus extending the service life of the product.
At the same time, trivalent chromium passivation solution is more environmentally friendly than traditional hexavalent chromium passivation solution and offer excellent corrosion resistance. Bigely's BZ-216 was developed based on this green concept and not only meets the environmental requirements, but also provides good film performance.
In conclusion, Bigely trivalent chromium galvanized black passivation solution BZ-216, is able to produce a high blackness and brightness passivate film layer on acid zinc plating and significantly improve its corrosion resistance. Therefore, BZ-216 is undoubtedly a suitable choice for plating applications that emphasize decorativeness and durability.
If you are interested in trivalent chromium galvanized black passivation solution, please feel free to contact us.
