From: gherold@teachspin.com   
      
   On Saturday, January 6, 2018 at 12:37:47 AM UTC-5, Andy K wrote:   
   > I having been using Oatey solder paste when soldering large diameter wires.   
   > I know it's designed for copper pipes.   
   >   
   >   
   > Is there something better?   
   >   
   > Thanks,   
   >           Andy   
      
   Ughh, OK I did that when I was starting out, and promptly   
   was 'talked to' by an older tech.  The problem with the acid   
   pipe solder is you have to get it all off, with water or something,   
   (just like when you do copper pipe plumbing.) otherwise it corrodes   
   over time and your pcb/circuit turns into this ugly green thing.   
      
   As Phil said get some rosin core solder/flux.  You can also buy   
   rosin flux in a little jar. (snuff box size.)  I use that for   
   tinning bigger wires.   
      
   George H.   
      
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