Plastic workpieces are prone to leakage after plating, and there are certainly many reasons for this. However, some plating plants will ignore the process link of palladium activation, and instead analyze other processes, which will result in a fish out of water. Today we will tell you why we need to do palladium activation? Why choosing the right colloidal palladium activation solution helps to do palladium activation well?
Palladium activation is needed for two reasons:
1. The surface of the roughened ABS plastic is microporous and has a strong adsorption force. Through activation, a uniform layer of negatively charged Pd/Sn colloid can be adsorbed on its surface, turning the non-conductive plastic into an electrical conductor, thus providing a catalytic center for the later chemical nickel plating - fine palladium metal particles for the basis of chemical plating.
2. The higher the activity in the activation solution, the less likely the subsequent electroless nickel plating will leak.
How to prevent reducing the activity and stability of the activation solution?
(1) In order to prevent chromic acid in the pre-impregnated water from being carried into the activation solution, before the plastic parts enter the colloidal palladium activation solution, it is possible to consider pre-impregnating and cleaning the plastic parts once more in a palladium aqueous recycling solution, if possible, and then proceeding directly to the colloidal palladium activation without cleaning.
(2) The quality of colloidal palladium activation solution is greatly related to the preparation method. If it is improperly prepared, its activity and stability are very poor. With the development of colloidal palladium synthesis technology, colloidal palladium particles are prepared more and more fine, the activity is more and more high, using Bigelow's colloidal palladium activation solution, palladium dosage can be greatly reduced, and at the same time, the stability of the prepared bath is good, which can effectively reduce the leakage of the plating and other faults.
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.
Our products are widely used to meet the plating needs of different industries and exported to many countries from all over the world. They can meet the environmental protection standard after use, mainly used in automobile parts, sanitary ware, electronic products, hardware, furniture, building accessories and other fields.
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.
