r/Anodization

Why can't I get green?

Why can't I get green?

I've been trying very unsuccessfully to anodize some titanium green. Ive anodized small patches in 5V increments from 5V to 100V and When I get above 55V ish the colors just get more and more faded. The closest I can get to green is essentially aqua, maybe teal at best. I just for the life of me cant get that bright toxic green I see other creators getting all over the place. Attached is the color progression I get. ANY insight or help would be extremely appreciated, im so tired of sanding at cleaning just to fail over and over and over 😅

Metal: CP grade 2 titanium sheet metal. CP grade 2 titanium rod.

Electrolyte solution: ¼ teaspoon baking soda and 16 Oz of distilled water.

Metal finishes tried: mirror finish, 320 grit matte.

Cleaning/degreasing: thoroughly scrub with dawn dish soap and abrasive sponge then thoroughly rinse. Repeat twice then dry and scrub with acetone and lint free cloth with nitrile gloves.

power supply: 120V 3.2A connected using alligator clips.

Sorry admins, I dont have an option to add flair otherwise I would have.

u/Brosephstalin11 — 5 days ago

Deanodize titanium

Any idea whats the chemical solutions they use to strip the oxide layer from titanium? Basing on results, it does not etch the surface of titanium after stripping the color as its still polished(glossy) result

u/twiceymc — 5 days ago