If that's all the information that you see fit to provide; I, and anyone else here can only provide this help:
Pray a lot.
If you expect any meaningful assistance, you can start by providing the following:
1. What anodizing process are you using? (standard Caswell, Caswell LCD, other).
2. What is the surface area of the "piece"?
3. What current density are you anodizing at? (amps per sq.ft. or amps per sq. in., meter, centimeter, cubit, etc. specify). If you can't come up with a number, don't waste my time.
4. How do you know that this is the actual current density you are anodizing at? I expect to hear actual voltage and current measurements.
5. How do you know the "piece" is clean enough to anodize?
More information will likely be needed but this is the basic stuff. If you can't answer these basic questions, you have no right to expect successful anodizing and dyeing.
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