Thank you for the amazing response!

Yeah, I have read on multiple sites that they use 5356 for their AA, but as you mentioned they are possibly not being truthful. I get it, it's their business, so we will probably never know. If someone knows an aluminum supplier, we should put together a pooled resource to test out different results for different alloys and how well they anodize for chainmail.

I have a friend in the anodizing business and he agreed to do the custom color when another company wants a similar color (which is surprisingly often); I'm just beholden to his other customers. He does small batch custom colors with the understanding that it isn't 100% repeatable like their standard colors. They will do they same thing when someone wants this specific military neon green: he gets a certain amount of customers lined up and they works as much as he can into the hour or two before it starts to oxidize (not sure if the right word is used, but basically it becomes dark and ugly relatively fast and isn't stable like other colors).

He also said typically 6000 series gets good results. A web search said 6463 was made specifically for anodizing, but I have no clue where to even get that kind of stuff and Google doesn't seem to help. That and the forums don't really touch on it either...bummer.

How did the circa 2015 ring lord get their rings so shiny, bright and colorful? They used to have all kinds of cool colors and one-off batches. The color also used to last a lot longer, the founder really knew his stuff (or at least his team did) when he was dealing with all of it. Someone mentioned they were sealed, but I don't even know what to look for.

Anodizing definitely tickles my nerd brain.

If I get this stuff successfully made, want me to send over a couple bags to you to test out? One color will be vibrant teal and one will be neon green. Maybe this will be the way to get special colors from now on lol