[Shop-talk] Airline Piping

[wmc_st at xxiii.com]

At 11:32 PM 8/17/2007, Rich White wrote:
>I did not think acid core solder was to be used on copper?
>I was taught that the acid would eventually eat through the copper.
>This is why pluming and electronics used rosin core solder.

Tin/Lead solder with acid flux [usually external, not core] was the 
norm for copper plumbing for years.  They switched to lead free 
solder for health concerns [I've always thought silly] sometime in 
the 90s.  The flux used is still very reactive;  I'm not sure exactly 
what is it or how acidic.

And yes, acid flux will ruin electronic components.  On plumbing 
you're supposed to wipe it off the outside, and any inside will be 
flushed away.

>You might consider ChemAire from Nibco.  See
>http://www.nibco.com/assets/ChmairOvrw.pdf

That looks like some really snazzy stuff!  I hate to think what they 
charge for it!

   -Wayne