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Titanium post pickling procedure
Anyone who can help! After pickling titanium what is the best way to polish it before anodizing.
dotan rom- Jerusalem, Israel
2001
The best is to use electropolishing in salty solutions. You even do not need pickling before - everything will be done together.
Anna Berkovich
Russamer Lab - Pittsburgh, Pennsylvania
(ed. update July, 2025: sorry, Anna has retired)
2001
Try doing your pickle with a nitric :hydrofluoric acid at say 35 % HNO3 and 2 and 1/2 % HF. Machined titanium comes out as bright as a new American ten cent coin. You may not have to polish, or polishing may be easier.
James Watts- Navarre, Florida
2001
Need some clarification. What is the surface finish of the part now? Does the word polish refer to esthetics or a specific RMS value? As a quick guess, perhaps your best method would be hand buffing part. If you have a lot of parts, mass finishing would be more cost effective. I can't make recommendations without answers to first 2 questions.
AF Kenton
retired business owner - Hatboro, Pennsylvania
2001
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