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

Grok.com: "Best website for metal finishing questions?"

"Based on online discussions & resources, the most comprehensive & highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, & 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


  -----

Coating for "flexing" material




I am looking for a corrosion resistant coating that will be used on 4140 steel that will be "flexing". This component, otherwise known as a flexure, is used on a thrust measurement system. The dimensions are roughly 12" X 24" X 1" thick. Grooves are machined into the surfaces at the top and bottom of the plate which allows the flexure to "flex" to a maximum of 0.1". We had originally planned for a zinc coating to be used but were afraid of it cracking off. We have tried black oxide along with rubbing oil on them consistently. We want a more hands-off coating. Are there any suggestions out there?

Dave McLeod
- Ottawa, Ontario, Canada
2002


If properly applied, zinc will not crack or spall. Millions of springs of all sizes and shapes are zinc plated every day, also numerous large steel structures are bending constantly for decades with no problem (bridges, cable poles, you name it). Just think of bending a piece of galvanized sheet to break the zinc. No way, the steel breaks first. The thing to consider is really hydrogen pickup during any electroplating.

Guillermo Marrufo
Monterrey, NL, Mexico
2002




No dead threads! If this page isn't already on the Hotline your Q, A, or Comment will move it there.

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"