Aloha, fun & authoritative answers -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Metal finishing Q&As since 1989

-----

Al Etchant

I have been trying to find an etchant solution for Al that does not affect Co or NiFe. Can anyone help, please ? Previously I tried NaoH or KOH.

Khaled Husain
National University of Singapore - singapore

Try Phosphoric Acid at about 30%/vol and 120 degrees F.

Robert H Probert
Robert H Probert Technical Services

Garner, North Carolina

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: