I was reading about anodizing standards and they have a standard for type III class 2, which is hard anodizing that is dyed (I'm sure that you knew that already). I understand that there is a big difference between a standard on paper and what happens in the real world. I'm wanting to know if there is a way of dying hard anodizing. I've seen some job shops put it on their web sites that they can do it or maybe they have some strange in-house thing.
We are trying to anodize bike parts. Room temperature anodizing is not hard enough. We are trying to anodize a brake calliper gold and a number of other parts. We have a desmut for castings and would really like to add some color to them.
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