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


  -----

Faded Anodized Parts




Over a period of years, (3-5),the black anodizing of housings exposed to the elements fades to a white color. They were anodized to MIL-A-8625 / MIL-PRF-8625 [⇦ this spec on DLA] Type I. Any help.

Frank Grabowski
- danbury Connecticut USA
2000


Dear Frank,

I would need a little more info, such as alloy and size of the parts. But you might want to try a non fade anodize along the lines of the Aluminum Association Standards & Designations A44.

Thank You,

Chris

Chris Faeth
Los Angeles California USA
2000


Dear Frank

Fading can cause by a very hash corrosive and/or salty atmospheric conditions. Film thickness and the colouring process are contributing factors. Electrolytic colouring process has superior colour fastness as compared to colouring by dye.

Regards,

Pelimani Fisi'iahi
anodising shop - Auckland, New Zealand
2000




(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"