A customer inquired that during the process of using potassium chloride zinc plating brightener, there was always fogging in the low area of the test piece when taking the plating solution for Hull groove testing. What is the reason for this?
Based on on-site experience and the characteristics of the product potassium chloride brightener BZ-528, Bigley Technology has analyzed the following two main points:
1. Insufficient brightener in the plating solution. A general brightener can improve the brightness and leveling effect of the coating. When the brightener is insufficient, the brightness range of the coating decreases, and the brightness in the low area will significantly deteriorate, resulting in fogging. When conducting the Hull groove lamination test, we can add the additional amount of cylinder opening agent and brightener. When the brightness of the coating in the low area of the test piece is poor, even dark or foggy, the brightener can be added to restore normal.
2. The influence of organic impurities in the plating solution. The decomposition products of additives and brighteners in the plating solution, as well as oil stains, can easily cause streaking, fogging, and blackening of the coating. This phenomenon occurs in the low area of the test piece during the Hull cell test, where there is fogging and blackening. Even adding a brightener will be ineffective. At this time, the plating solution should be treated with activated carbon and filtered, and then added with an appropriate brightener to solve the problem.
Therefore, in the process of using potassium chloride zinc plating brightener, when there is fogging phenomenon in the low area of the test piece during the Hull groove test, attention should be paid to the above two points, and the phenomenon of fogging in the low area of the coating should be solved as soon as possible to improve production efficiency. If you are interested in potassium chloride zinc plating brightener, please contact Bigley customer service for free samples and detailed technical information!
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