[sdiy] Solder corrosion - what is it?

[KA4HJH]

> On Nov 4, 2016, at 9:28 AM, wot wot <synth-diy at dadacafe.org> wrote:
> 
> our retired electronics guy who originally came from chemistry once
> explained that many a solder flux residue reaction could indeed form
> something corrosive. his advice was to use nitrocellulose lacquer
> thinner ("Nitroverdünner" in german) applied over all fresh solder
> joints with a paintbrush, wait about a minute and then paint the
> resulting liquid over the entire PCB.
> This is supposed to not just work as a solvent but also react in a
> way that would make it actually protect against corrosion.
> 
> disclaimer: i'm not as well versed in chemistry, just tried to
> recall his words.

IIRC, nitrocellulose putty (Bondo®) is dissolved in acetone but this may be something different.


Terry Bowman, KA4HJH
"The Mac Doctor"