I have a good respirator, if I HAVE to ever do that again, I will do
it outside - with the respirator, AND standing up-wind from the
material as it is being sanded.
It sure is funny how certain things can set off the coughing like
that.
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> On Tue, 18 Apr 2006 02:03:30 +0200, Herbert E. Plett
<cachureos@...>
> wrote:
>
> > It appears as though
> >
> >> the copper oxide (whatever the black stuff is) can be a
repiratory
> >
> >> irritant of some sort.
> >
> > ...
> >
> >
> > the way to remove the oxide is with muriatic acid (HCl)...
> >
>
>
> Or sand under water if you must.
>
> ST
>