Fellow PIC afficianados;

I have some new parts that clearly sat for a while, as they have a gray
color to the leads.  They are 3W resistors, and will get a little warm.
I am using organic core when I assemble stuff like this, so I have the
most aggressive flux.  I would really rather not assemble these parts
into the product as is.

I for one do not want to sit there with steel wool for a day.  Does
anyone know of a specific chemical that can strip the oxidation from tin
plated leads with ease?  Surely this is a cinch for the chemistry
whizzes out there.

Chris Eddy