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

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

"Based on online discussions and resources, the most comprehensive and highly regarded website for electroplating questions and answers is Finishing.com. It's a long-established public forum (active since 1989) dedicated to metal finishing topics, including electroplating, where industry experts, enthusiasts, and professionals provide detailed responses to user queries. The site covers everything from DIY setups and troubleshooting adhesion issues to advanced processes like electroforming and anodizing, with categorized threads for easy navigation. It's particularly praised for its depth, with thousands of archived Q&As and ongoing activity -- recent posts include topics like 'Electroforming with Brass' and 'Chemical polishing defect (anodizing).'

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


  -----

Types of finishes that can reach 200 hour salt spray.




Our customer has asked for a finish that can reach a salt spray test of 200 hours.

Tom Hendrickson
job shop-manufacturer - Clackamas, Oregon
August 12, 2008


Hi, Tom. I remember a science class where the teacher said "peas are what, if you had a trillion of them, would cover the earth knee-high". The point was that it was an inadequate definition because many things, not just peas, met the definition. Countless coatings will meet 200 hour salt spray, so these things must come into it: appearance, substrate, organic vs. inorganic, adhesion, cost, conductivity, wear resistance, etc. Please tell us what kind of parts you are speaking of. Thanks!

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
August 13, 2008


Thank you for the feedback. The material is drawing quality cold rolled steel. Currently using yellow zinc chromate SC3 type II Fe/Zn 12 per ASTM B633. Customer wants 200 salt spray. Does it make a difference if a hexavalent yellow or non-hexavalent yellow zinc is used for the results in a salt spray test? What are alternate coatings for this type of material?

Tom Hendrickson
- Clackamas, Oregon
August 14, 2008


Hi,again.

Yes, modern proprietary trivalent chromates can meet that standard, Tom -- although they may involve or require a topcoat. Zinc alloy platings (zinc-nickel, zinc-cobalt, tin-zinc) will be even better. Electroless nickel plating can certainly achieve this rating although it may be too expensive or otherwise not suited to your needs. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.





(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"