No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

"Sweating" stains on silverplate

Dear Sir

We do plating of Silver on home products like cutlery,trays, etc. We usaully get cyanide spots on our products which we call "sweating". Is there any way we can stop this and Is there any way to stop the tarnishing of silver .

Bharat Bhatia
manufacturers & Exporters - Delhi, India
2004

2005

Mr Bhatia

The cyanide spot out which you refer to as sweating can be reduced by immersion in dilute acetic acid ⇦ on eBay or Amazon [affil link] . Some use dilute oxalic acid ⇦ on eBay or Amazon [affil link] .

Silver anti tarnish is a proprietary product which is sold by a supply house.

There are plating process issues that are responsible for the cyanide spotting out and you should consult a specialist for both your problems.

Regards

Asif Nurie [deceased]
- New Delhi, India
With deep regret we sadly advise that Asif passed away on Jan 24, 2016

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: