Why is it not recommended to use fluoride-containing hard chrome additives?
Compared to sulfate-only plating baths, baths containing fluoride-based hard chromium additives offer certain advantages: higher current efficiency, the ability to operate at higher deposition rates, and the production of harder and brighter deposits. Fluoride provides excellent dispersion and coverage capabilities.
However, there are also significant drawbacks: the addition of such chromium plating additives greatly increases the bath solution's sensitivity to changes in composition and to iron and aluminum impurities. Consequently, greater attention must be paid to bath impurities, requiring more frequent analysis, control, and management. Additionally, analyzing and controlling either monofluoride or complex fluoride compounds is relatively complex for electroplating plants, and these compounds can corrode low-lying areas of the substrate. Some electroplating plants do not routinely perform chemical analyses on their plating solutions, and even when they do, the results may not be accurate. Consequently, the use of fluoride-containing hard chromium additives represents a burden for them.
To address the aforementioned issues, we can utilize Bigely fluoride-free hard chrome additive Cr-2. This additive does not corrode the low-potential areas of the substrate nor attack the anode. This ensures that customer products remain undamaged while also preventing contamination of the bath solution by metallic impurities. Furthermore, under the guidance of Bigely engineers, bath maintenance becomes relatively straightforward, while still achieving the desired effects of enhancing cathode current efficiency and plating speed.
About us
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.
