What are the advantages of fluorine-free hard chrome additives? In this article, we will analyze them.
One of the greatest advantages of fluorine-free hard chromium additives is that they do not corrode the cathode. Even areas of the exposed steel substrate that fail to receive a chromium coating due to low current density remain unaffected. This low-current-density corrosion proves particularly detrimental when complex-shaped steel parts undergo prolonged hard chromium plating in solutions containing fluorine-based additives.
Why does this happen? Because fluoride ions dissolve the protective oxide layer exposed in the low-level areas of the steel substrate. This not only allows the acid solution to continue dissolving the steel substrate but also leads to contamination of the plating solution with iron impurities.
This corrosive nature limits the application of fluoride-containing chromium plating solutions in hard chrome plating, Consequently, many decorative and hard chrome plating practitioners prefer traditional chrome plating solutions or fluoride-free rapid chrome plating solutions. However, another issue arises: while these solutions do not corrode low-current-density areas of the substrate, they exhibit relatively low cathode current efficiency. To address this challenge, Bigely has developed the hard chrome additive Cr-2. Its key features include fluoride-free formulation, high current efficiency, and the absence of harmful corrosion in low current density zones. Consequently, this process plays a vital role in hard chrome plating applications.
Why can you trust Bigely?
Guangdong Bigely Technology Co., Ltd. ,founded in 2003, is a high-tech enterprise integrating R & D，production, sales and service, specializing in the production of electroplating additives. As a famous electroplating additives source manufacturer in China, Bigely has over 20 years' experience in electroplating additives production and own production base of 5000 square meters. We can produce 15,000 tons of electroplating additives every year, which can fully meet the needs of customers.
If you need our high-quality electroplating additives, please contact us. We can provide you samples for test, and also provide a series of services.
