Mr. Li from Qingdao, Shandong is the owner of an electroplating factory engaged in galvanizing processing of various hardware standard parts, mechanical equipment accessories, and stamping parts. Recently, Mr. Li used a color zinc passivation solution recommended by a friend. Although it can achieve the reddish color zinc appearance that customers want, the passivation film has poor adhesion and is prone to detachment. Due to serious delays in production quality and the reputation of the factory, Mr. Li urgently wants to replace a trivalent chromium zinc passivation solution with good appearance and performance quality.
One day, while searching online, Mr. Li saw that Bigley's trivalent chromium colored zinc passivation solution BZ-207 could also produce a reddish colored zinc appearance. He asked if this passivation solution would peel off the passivation film during production and how the salt spray effect on the workpiece was. After understanding Mr. Li's production situation in detail, Bigley engineers explained to him that although some color zinc passivating agents on the market can produce a reddish passivation appearance like hexavalent chromium passivation solution, due to the immature technical formula, there are problems such as poor bonding strength, poor corrosion resistance, and unstable passivation solution after passivation of the workpiece.
And Bingley's trivalent chromium colored zinc passivation solution BZ-207 was developed by Bingley's research and development team after a year. The workpiece can obtain a reddish colored passivation film similar to the hexavalent chromium passivation process, with bright colors and good adhesion of the passivation film, which is not easy to peel off. The workpiece has good corrosion resistance, and the neutral salt spray test can reach more than 150 hours. It is very suitable for galvanized passivation treatment on various automatic and manual lines. Mr. Li felt that this passivation solution was very suitable for his production needs, so he purchased one barrel to try it out.
Under the guidance of engineers, the trivalent chromium colored zinc passivator BZ-207 from Bigley was used. The appearance of the red passivation film on the workpiece was uniform and bright, and there was no longer any phenomenon of poor adhesion or detachment of the film layer. Previously, the workpiece could only barely pass 72 hours of salt spray testing, but now it can reach 120 hours of salt spray testing, greatly improving the industry competitiveness of the workpiece color passivation, and can accept more high-quality orders. So, Mr. Li placed another order and signed a long-term cooperation purchase and sales contract with Bigley.
So, when our colored zinc workpiece is passivated to a reddish appearance, the passivation film has poor adhesion and is easy to fall off. Try Bigley's trivalent chromium colored zinc passivation solution BZ-207, which can meet the quality requirements for the appearance and performance of the workpiece. If you are interested in this trivalent chromium colored zinc passivation solution, please contact Bigley customer service for free samples and detailed technical information!