[LogicPB]

Here is my problem:

I am anodizing 6061 T-6 Aluminum, that has been sand blasted, and I am having trouble getting it to take color.

I am using the Caswell Deep Red color dye.

I first washed the part well, mounted the elctrode wire, then I soaked the part in a mild Nitric Acid solution, and after a rinse, it goes into the bath.

I anodized the part for 45 mins, washed it again, and then into 130 deg dye. I let the part soak in the dye for 15 mins, and then boiled them for 40 mins.

When that was all done, I am left with a part that has a slight reddish/purple twinge, with an overall grey tint.

What am I doing wrong?

I have gotten a glass bead blasted part to take color, albeit a different one. (Caswell Electric Blue)

Is my red dye bad? I haven't been able to get a good red on any part, bead blasted, sand blasted, or gloss. It always goes pink.

I have fortified the dye, thinking it was just mixed too weak, but with no result.

Any help would be greatly appreciated.

I know this can be done; I have seen it, I just don't know how to make it happen.

Thanks for your time.