[Ronja] Miraculous soldering: tartaric acid

[Kubajz]

This sounds great. Soldering on zinc was a kind of nightmare for me. I
will try it next week...

K

Karel Kulhavy napsal(a):
> Tartaric acid (weinsaeure, kyselina vinna) is a natural acid
> from wine. It's sold as white crystals for home conserving
> food.
>
> I tried it for soldering instead of colophonium directly in crystalic
> form. It melts on hot soldering iron. Tins heavily
> oxidized copper and nickel plated connector instantly. Then I
> tried some M6 bolt not sure if zinced or nickeled was also
> almost instant, extremely shiny and you couldn't tell the boundary
> between tinned and untinned part. Doesn't work on aluminium foil.
>
> I wonder if someone has this acid at home as well and want to try,
> what experience he gets.
>
> CL<
>
>