A customer inquired that their plastic parts were being produced using a newly opened bath solution with electroless copper plating additives and following the parameters specified in the product manual. However, the parts showed obvious blistering at the edge of the hole. What is the reason for this?
Based on on-site experience and the characteristics of HSECu-801, a electroless copper plating additive, Bigley Technology has analyzed the following three main points:
1. Foaming caused by foreign objects on the surface of the workpiece. This type of malfunction may be due to incomplete oil removal and cleaning, insufficient micro corrosion on the surface of the workpiece, insufficient adhesive release, etc. The dirt adhered to the surface of the workpiece cannot be completely removed before entering the electroless copper plating solution, resulting in rough and blistering of the coating.
2. The rapid deposition rate of electroless copper leads to uneven, rough, and poor adhesion of the coating, making it prone to blistering. The main reasons for this situation are the high concentration or temperature of the activation solution, the high concentration or temperature of the electroless copper plating solution, the large load, and the rapid deposition rate of the copper layer, resulting in loose, rough, or blistered coatings.
3. Alkaline gel solution has poor effect. Acidic solution can be used instead of alkaline solution to enhance the effect of solution and avoid the phenomenon of electroless copper layer foaming on the workpiece due to incomplete solution.
Therefore, when bubbles appear at the hole edge of plastic workpieces during the use of electroless copper plating additives, the above three points can be used to promptly troubleshoot and reduce losses. If you are interested in electroless copper plating additives, please contact Bigley customer service to obtain free samples and detailed technical information!
If you want to learn more about electroless copper plating, you can click to view the "Common problem".