Why is it said that the smaller the particle size of solder paste, the stronger its activity?

Some people say that "the smaller the particle size of solder paste, the stronger its activity". Is this true? For newcomersSolder pastePeople who have been in the industry for a short time might agree with this statement, and I myself am one of them. Later, after learning, I realized that this was a wrong statement. Next, let the solder paste manufacturer explain why smaller solder paste particle size does not necessarily mean stronger activity:

People who are new to solder paste may have a misconception that "the smaller the particle size of the solder paste, the stronger its activity must be." Why? Look, we are doing footworkICDuring printing, the solder coating rate of solder paste with larger particle size is worse than that of solder paste with smaller particle size. In many places, there is no solder coating (or no solder coating at all), which leads some people to believe that it is caused by the weak activity of the solder paste. In fact, it's not like that, MijiaoICDue to the small gaps between components, only fine particles can fully penetrate, while large particles of solder paste are blocked and cannot enter at all. Naturally, there is no question of their activity. However, if small-particle solder paste does not creep and has weak extensibility, it may be related to its weak activity.

To sum up, everyone still needs to be quite cautious during the operation process. Generally, a moderate amount of addition is sufficient. If you have any further questions, please continue to follow the online message of JJY Solder Paste Factory for more knowledge about soldering and interact with us.