Authoritative Answers, Fun, & Aloha -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

mobile?
Metal finishing Q&As since 1989

-----

Chrome neutralization after plating

finishing.com is made possible by ...
this text gets replaced with bannerText

Q. I need to neutralize or want to know for water faucet elegant look by chrome plating. What solution is preferable?

Chandra Singh Subhash
- Aligarh
May 8, 2024

A. Hi Chandra,
More words please :-)

I don't know if you mean you need to neutralize the faucet itself (which I think should be done by thorough DI water rinsing), or whether you are talking about needing to neutralize the rinse water or plating solution for disposal -- in which case please search the site with the search term "waste treat chrome", and you'll see several deep discussions of the topic.
Luck & Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

⇩ Related postings, oldest first ⇩

Q. After bright nickel and chrome plating rinsing is done.Need to neutralize chrome traces on the plated part. How to do it?

Umar Farooq
- Lahore, Pakistan
2007

"Water and Waste Control for the plating Shop"
by Kushner & Kushner
wt_kushner

on AbeBooks

or eBay or

Amazon

(affil links)

"Operation & Maintenance of Surface Finishing Wastewater Treatment Systems"
by Clarence Roy
wt_roy

on AbeBooks

or eBay or

Amazon

(affil links)

A. Hello Umar,
I don't think there is a stain-free neutralizing treatment. I believe you need is excellent DI rinsing.

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

A. Can't you insert a tank containing sodium metabisulphite solution after the chrome dragout tank and before the water rinsing?

John Martin
- Cardiff

A. Read about the "Lancy-Process".

Dominik Michalek
- Mexico City, Mexico

A. Dear Farooq,
Try a 10% sodium bi sulphite final dip as the final rinse before drying.
Regards,

T.K. Mohan
plating process supplier - Mumbai, India

? Is there a decorative chrome plater out there who is actually using a neutralizing treatment, please? When I was employed by Lancy we used the "integrated" neutralizing treatment after chromating (we used hydrazine as the neutralizer in those days), but I don't remember using it for decorative chrome plating ... maybe I wasn't paying attention :-)

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

(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: