A lot of things were working fine been hinky lately. ???

Been working with a lot of pieces that I realize are cut from the same alloy of sheet. My process has been

Cut (plasma cut)
Shape + deburr
Polish
Ano
Dye
(Redye)
Seal in nickel acetate

When they’re dyed the first time, they look beautiful, uniform, perfect. When they’re masked or acidwashed, though, the first color is fine – but the second becomes blotchy, and more so with every bleach/sulfuric dip + redye. Eventually with each treatment it stops dying at all; usually by the third bleach/acid/redye it’ll take only the lightest shade of the third color, in blotches.

Here is a piece that was dyed yellow, masked in parts, then redyed brown. The other was dyed blue, masked, dyed violet, masked, and dyed green (this is the backside, the flip with the masking was more uniform in green but several shades lighter -???). The effect could be desirable but is NOT what I’m looking for here.

Many thanks..

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