[PBInferno]

Ok so I stripped and beadblasted the parts and it got rid of that stuff, whatever it was, but it left some pretty deep indentations in the parts. I was able to polish most of them out, though.

Also, I tried running a spare piece of 6061 today and I noticed something interesting. A red buildup develops on my cathodes after a couple days of not anodizing, and whenever I used to anodize using constant voltage, it would always come off the cathodes almost immediately after the power supply was turned on. But today when I tried to run constant current, the buildup stayed on the cathodes the whole time, even though the power supply was putting out 30V when set to .4 amps. What could cause this?

And any clue what's going on with my black dye?