On Mar 30, 12:57*pm, Larry Jaques
wrote:


He is *right* about the 'white' flux. *It is just unusable
because it oxidizes very quickly.



I suspect that not all white flux is the same. I just used some
white flux today to apply some silver solder to a stainless tank.
Worked just fine. Can not tell you anything about the flux as it is
in a glass jar with a unreadable label. I have probably had it for
thirty years.

Dan