No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Proper way to strip chrome from steel




With my experience in plating, I ran into a job to where I had to strip chrome. I put the parts in muriatic acid until chrome was removed, Parts were masked with red goop. the muriatic acid ate through the goop and started attacking the chrome, pitting, black spots. what do I need to do in the future to prevent this from happening again?

Joe Weizel
production manager - Fridley, Minnesota, USA
2007



2007

Don't use muriatic acid would be a good start!

The usual way to strip chrome from steel is anodically in 10% caustic soda [affil links] at approximately 2-4 Volts.

If you can't use an anodic process then the muriatic acid needs to be inhibited to reduce attack on the steel (such as 20g/l antimony trioxide) and keeping a close eye on the parts to ensure the parts are removed immediately stripping is complete, because this method will only reduce attack, not stop it.

Brian Terry
Aerospace - Yeovil, Somerset, UK


finishing.com is possible thanks to our supporting advertisers, including:
maskcoat banner 



(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:

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


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"