Ugh, well, yeah, I read about it and I did get it all wrong. Deleted the stupid post. I asked someone who should have known better, and was too lazy to research it myself. Thanks for straightening me out there BillA.
I read a bit on this, but everything I could find was marketing blather of some form or another.
I have two questions for you, and I am happy to read something about it if you know where to point me.
1. The layer of oxide is cited as being porous which allows dying, but is it porous enough to lead to eventual galvanic corrosion with type II anodizing, or is this a stupid misinterpretation?
2. Nickel plating was cited as a "sacrificial coating" in some of the sources I could find. Does this in any way imply that it will corrode over time, or does sacrificial coating imply that it is altered in some way then stable, and prevents the underlying material from being altered?
Also, a quote that may be relevant to the silverprop issue from
www.bauertesting.com
'A poorly done coating can be worse than no coating at all. When an otherwise inert coating has significant cracks or pores, localized corrosion or pitting will be greatly accelerated by direct chemical attack of the exposed substrate, the galvanic potential between the layers, galvanic potential between nearby materials, concentration-cell effect, and stresses at the interface. This phenomena can be seen on an anodized, or nickel plated aluminum part that was not prepared properly. "
This one was simple enough as to probably be misleading, but fortunately simple enough for my feeble mind to comprehend.
I am a very confused mathematics type, hardware stuff makes my head spin, but I'm trying to learn. Thanks.