As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Grok.com: "What is the best website for metal finishing questions and answers?"

"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  -----

'Tiger Stripe' phenomenon in Black Anodize Electrolytic Coloring





Hi all,

I believe you all had heard about the 'Tiger Stripe' phenomenon in Black Anodize Electrolytic Coloring in AL 6061 T6 and also in AL 5053 H32. Currently is there any fact or root cause that cause the 'Tiger Stripe' phenomenon? I had done fews Design of Experiment, and roughly have a gut feel that this phenomenon is related to the surface roughness (Ra value). The very fine surface (Ra32~64, bead blasting surface) also will not have this phenomenon.

This are some of my finding, can somebody have more experience on this experience and make my finding more concrete.

I also would like invite those who know the chemical behind this process to share with us, and maybe we can have some ideas or brainstorm on what is going wrong.

Thanks

Collin, Chris
Undergrad Student - Singapore
2006




(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:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"