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Reducing The Chances of Having Dry Joints Again In Circuit Board

By on March 6, 2014

Sometimes after applying fresh solder on a dry joint in a circuit board, the joint could break again most probably due to the type of solder we are using and few more factors like high temperature environment and vibration. In order to reduce repeated call from customers a fellow ERG member suggested to use the 5% silver content solder lead. Silver melts at a higher temperature thus it would be appropriate to use it in high temperature application.

At Ebay i saw sellers with few different types of 5% silver content solder lead. Personally I have not tried this solder before but if you have used it we would like to hear about your experience. Please leave your valuable comment below-thanks.




  1. Waleed Rishmawi

    March 6, 2014 at 4:03 pm

    honestly, I have not used any of this solder but in my shop, I never got a call back from a customer for bad soldering joints. here is a nice tip, I do not mix the new soldering with the existing old solder, I always de solder it, clean the joint then resolder it. so far, so good.

  2. Amendar

    March 6, 2014 at 4:59 pm

    Hi Waleed,

    Nice tip.

    This is exactly what I do.

  3. Robert

    March 6, 2014 at 8:41 pm

    Thanks Mr. Yong,
    I do like Waleed said.
    But the service manual to my Tektronix 2465A DV Oscilloscope says to use leaded solder that contains silver. So I am going to get some in case I ever have to work on my scope.

    • Jestine Yong

      March 6, 2014 at 9:19 pm

      HI Robert,

      Do share your experience once you have got the 5% silver content solder.


      • Robert

        March 7, 2014 at 1:26 am

        Hopefully I will not have any problems with my scope.
        That solder with silver that I have seen is expensive.

  4. Mark Tembo

    March 7, 2014 at 12:08 am

    To be frank, I am not sure whether I have used it or not. I will try to look for such solder in electronic shops.

  5. raymundo saura

    March 7, 2014 at 2:46 pm

    thanks for this advice i learn something again

  6. owais akhter

    March 7, 2014 at 7:22 pm

    Hi All,

    I'm using ASAHI brand solder which is Rosin Activated core solder and it is 60/40 ratio of lead and tin. I never got any complaint of bad soldering after done soldering with this solder. I usually repair industrial equipment any everybody knows that how high temperature in industrial equipments.


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