From: charlie@xxx.net   
      
   On Tue, 11 Jul 2023 16:41:59 -0400, Saunderlin  wrote as   
   underneath :   
      
   >I am about to start repairs on a Kenwood ham radio that originally used   
   >Sonybond to secure several of its VCOs.  The main VCO has become   
   >unstable and voltage exists within the Sonybond to ground, so it has to   
   >be removed.   
   >   
   >Initial recommendations from years past suggested carefully scraping or   
   >cutting away miniscule pieces until none remained all the while   
   >carefully preserving circuit components.  Since the process is long and   
   >tedious, I wonder if any better ways have been developed for removing   
   >this stuff and preserving components?  Thank you.   
      
   The type (there are two types apparently) that I had in a radio and had   
   gone conductive -  I managed partially to dissolve ie soften with   
   Silicone sealant remover (a Beaufix product I had in the garage IIRC).   
   The remover wants to dry out so to stop this soak the brown stuff then   
   cover with clingfilm for 24 hours, pull off with fine tweezers what you   
   can, then repeat the treatment once or twice more. Slow and fiddly as   
   hell but it got there in the end.   
   No other solvents I tried would even touch it, and I tried a bundle.   
   Might be worth a try.. C+   
      
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