Most of the aluminum passivators in the market contain hexavalent chromium. The presence of hexavalent chromium is a great hazard to the environment. It is very toxic to the human body. It is possibly lethal for an adult to ingest 2mL of hexavalent chromium solution. Long-term ingestion or exposure to hexavalent chromium by construction workers can cause irritation to sensitive parts such as skin and eyes. It also increases the probability of workers suffering from respiratory cancer.

After years of research in chromium-free passivator, the new chromium profile surface passivator produced by our company can effectively replaces the current chrome-containing aluminum passivator. After use, the surface layer of the aluminum profile is dense, fine and uniform, and has high corrosion resistance. In addition, the chromium-free passivator can be used at room temperature, which is convenient and safe . The generated wastewater is easy to handle and can easily meet the emission standards.