Summary for anodizing dye naming conventions Discussion
Anodizing dye color naming conventions are not clearly standardized in the thread, and the appended codes like 4A, AEN, and 3GL are not explained as a universal color system. The hobbyist asking the question also wanted to know whether base anodizing dyes can be mixed predictably to hit a target hue from CMYK or RGB values, but noted that different dyes seem to uptake at different rates and that results are hard to judge without running a full anodize cycle. No one in the excerpt provides a definitive mapping for the codes or a reliable shortcut for color matching. The practical takeaway is that anodizing color development is still highly process- and alloy-dependent, so trial parts and iterative testing are likely needed to dial in a shade. The discussion reflects the difficulty of translating paint-style mixing logic directly to anodizing dyes.
Q. Hello, Just a hobbyist learning:
I wondered if anyone might be able to shed some light on the Anodizing Dye color naming conventions seen out there.
I’m seeing appended codes like: 4A, AEN, 3GL at the end of Dye names, and don’t know what those mean. They seem to sometimes be common across manufacturers, which tends to imply a deeper mapping to some kind of color specification or historical meaning.
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Also, is there a preferred approach to color mixing using the commonly available base color anodizing dyes to get to specific desired hue/shade?
It seems in my limited testing (Type II on 6061), it has not been as simple as mixing to ratios one would use in the paint or computer worlds, as the dyes tend to uptake at different rates.
Also it’s been pretty hard (for me, anyway) to tell how a specific mixture will turn out, without actually anodizing a part. Are there methods to grade color without full anodize cycle?
Ideally, would love to be able to start with a CMYK or RGB value, then calculate my way to an “in the ballpark” hue, then tune it to my alloy and surface prep in as few anodize iterations as possible
Grateful for anyone who might point me in the right direction!
Jeremy Witt
Hobbyist – Dallas, Texas USA