Chemical tinning of PCB´s

[Michael Buchstaller]

Some short query:

I have noticed that on some PCB´s that i made in the early 80s there
is some corrosion on the traces. The boards continue to work fine, but
i think that i shold try to stop this for future projects.

Now i have heard of a way to tin-plate a board by putting it into a chemical
solution for a while - this is told to make it easier to solder (have never had problems
with soldering my boards) and resistant against aggressive atmospheric con-
ditions (maybe normal city air ?)
Here in germany, Conrad sells something that is called "SENO Glanzzinn", a powder
that is dissolved in hot water. The board is soaked in that solution and becomes
shiny silver after s short time (some minutes).

Has anybody tried this or another method ? Is it worth the extra time and money,
or do the tinned traces become dull very soon ?


-Michael Buchstaller