One thing I should mention, this is my second anodizing setup. My first setup was two aluminum cathodes about 2-3" off the bottom of my tank. The cathodes were about 3/4" in dia and about 6" long. My acid mix was 50% acid to water. With this setup I had great success getting color and it actually would not leach out. However getting consistant color from part to part was our major problem. Caswell suggested the changes that set us where we are now. Since then I have not been able to get a single peice to anodize.
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