Kevin,
Thanks for taking the time to describe this plating process. It looks very interesting and also very doable for the hobbyist. It does appear that zinc adhesion is enhanced with a media blasted surface. How do you know when the process is over, or does the zinc plating continue to get thicker with emersion time?
I have to admit when reading this, I had an amusing mental image of a mad alchemist working with an assortment of chemicals in a deep dark abandoned Alaskan mine. Who knows, maybe you will strike gold!
Thanks again!
Paul