Where the world gathers for
plating, anodizing, & finishing Q&As since 1989

"Discoloration on stainless steel edges"

-----

2002

I'm cutting stainless steel (medical grade material) using EDM process, and I'm getting discoloration on the edges, what can I use besides Phosphoric acid to clear them up?

Waldin Gonzalez
- Tustin, California

2002

Sometimes this is difficult to remove, but we have had customers successfully remove it with our citric acid based products using warm (150-160 °F) solutions, many times with ultrasonics. One customer uses our product at 180F for this type of cleaning. You can only try it to see if it works for your particular situation.

Lee Kremer
Stellar Solutions, Inc.

McHenry, Illinois

finishing.com is made possible by ...
this text gets replaced with bannerText

(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: