Mike
You can learn alot from cross sections of the nodules.  I have
seen nodules formed around electroless that has "peeled" off
the hole wall - this can been seen as the electroless will be
plated completely around in the nodule.

I also have seen nodules caused by "fluffy" electroless.  It
appears that the electroless is so unstable it just piles on top
of itself, but does not adhere well to itself.  The electrolytic
then forms nodules up and around these piles of electroless.

Susan Mansilla
Technical Director
Robisan Lab

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