[sdiy] cleaning corroded solder lugs?

Mike Gorman mikegorman at btinternet.com
Mon Dec 15 08:47:37 CET 2014

Hi Michael,

I would suggest a fibreglass pencil, or something similar.

Here's one at CPC, but they are available from many other suppliers.




On 15 Dec 2014, at 02:48, Michael Zacherl <sdiy-mz01 at blauwurf.info> wrote:

> Hi, I'm modifying a module and have to change the connections on an APEM toggle switch.
> After all this years it appears that the free solder lugs got heavily corroded.
> Since they are all black I assume the lugs are originally silver-coated, which eventually got oxidised.
> So scraping the lugs off (with, say, a nail-file) is presumably a bad idea.
> What can I do to get a good solder joint again?
> I remember my granny (decades ago, though) cleaning the table silver with some solvent,
> but that's not easily applicable for this switch, if at all.
> Also, to prevent this to happen again, would it be a good idea to put solder onto the unused new lugs?
> This would be replaced easily for maintenance or modification.
> thanks, Michael.
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