Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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"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 Bhatiamanufacturers & 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 ⇦ this on eBay or Amazon [affil links] . Some use dilute oxalic acid ⇦ this on eBay or Amazon [affil links] .
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
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