IIRC, Stay Brite 8 is not soft solder, it is silver bearing solder... 8% silver. And, properly used, the flux doesn't contaminate the system. I like Stay Brite 8 because it is easier for less-experienced installers and techs to make up a leak-free joint consistently without burning the crap out of everything. I'll add that I normally will braze all my work and always braze compressor joints or other vibration prone components.
Originally posted by docholiday
I wouldnt get to attached to soft soldering compounds in a refrigeration system. Primarily because of the flux and the acid it leaves behind.