Decaying foam on PCBs

Jules Richardson jules.richardson99 at
Tue Aug 27 19:39:39 CDT 2019

I picked up a couple of HP 5036A logic trainers today, both of which have 
had goopy decaying foam come into contact on their PCBs. What's effective 
at removing it? I've only ever had problems with it in locations where I 
can use things such as citrus-based cleaners, but I'm a bit wary of using 
those around a PCB. Is regular Dawn/water likely to work?



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