Mr. Rogers: "Look for the Helpers. You will always find people who are helping."
As an Amazon Associate & eBay Partner: we earn from qualifying purchases

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


  Thread 370/01

CASS and Chrome Plating


Hi,

Q. I have a customer specified for 44 hours CASS Chrome finish with #400 grits. Can you let me where can I get the specs for 44 hrs CASS CHROME finish.

JACK LYNN
METCOR INDUSTRIES, INC. - WALNUT, California
2005
publicly reply to JACK LYNN

A. CASS means copper-accelerated salt spray. So this is not a spec for the plating, but is a spec for the accelerated corrosion testing which the plating must survive. Look into spec ASTM B368.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005
publicly reply to Ted Mooney

A. If you are looking for a chrome plating spec that meets the 44 hours CASS test, try to get General Motors spec GM4374M. it is published with GM4372M and GM4373M. Also ASTM B456, SC 5.

Jim Vickers
- Concordville, Pennsylvania, USA
2005
publicly reply to Jim Vickers



(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"