Hi Nicolas!

     As far as the exposed copper that results from an OSP process, there
isn't an issue as far as I know. Yes the copper will oxidize, but from the
little bit I know about metallurgy, it's my understanding is that the copper
will be coated with a layer of oxidation, and then it slows down dramatically.
For a illustration of that just think about some of the copper water lines in
old houses, the copper telephone lines exposed to the elements for years and
years...that shows that it takes quite a while for copper to deteriorate.

     Somebody correct me if I'm wrong about this, but the exposed copper
problems that are defects usually have something to do with the exposed copper
being an indicator of some other problem, not the fact that the copper itself
is exposed. Oxidation of the copper is normally only a problem when trying to
solder to it...

C-ya,

-Steve Gregory-

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