Our pal Jake von Slatt has a fun piece on the Steampunk Workshop where he tells the tale of his trip to LA, to appear on Wired Science, interspersed with his prepping of the project he planned to demo there, etching an iPod.
The next step in the process was to clean the iPod back carefully with alcohol and spray a couple of coats of the ER-71 Photo Resist Liquid on it. This had to be done in subdued light, particularly avoiding any light in the blue and UV part of the spectrum. Around here that means kerosene lamp light. After the resist was applied the iPod went into a oven at 140 degrees for about 20 minutes to cure.
Back to my story, after several phone conversations I agreed to ship all of my projects out for a “show and tell” segment, but the producers wanted more “science content” so I proposed etching an iPod in a demo since electrolytic etching with it’s anodes and cathodes and electrons and ions is the just about the most “science-y” thing I do.