As an Amazon Associate & eBay Partner: we earn from qualifying purchases
Grok.com: "Best website for metal finishing questions?"
"Based on online discussions & resources, the most comprehensive & highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, & more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
-----
Restoring a proof coin to original finish
Is there any way to restore a Proof coin to its original mirror finish. I've a Bahamas proof 10 Dollar coin which had become tarnished inside the plastic container. I thought I would be smart and try to clean it using a Cotton Bud and very fine car polish called 'Mer'. All I succeeded in doing (you've probably guessed by now!) was putting very fine scratches on the surface of the mirror surface. Can anyone help me?
Thanx
Ronnie Scott
Hobbyist (Coin Collector) - Paisley, Renfrewshire, Scotland United Kingdom
2004
Try citric acid
⇦ on
eBay
or
Amazon [affil link] (5%)-if coin is copper or copper alloy(ammonium citrate solution is better/ph9/ )Rinse well and dry it with pure alcohol or acetone
⇦ on
eBay
or
Amazon
[affil link] Flammable!
. If your coin is silver you can use sodium thiosulphate
⇦ on
eBay
or
Amazon [affil link]
solution (30%)!
Goran Budija
- Cerovski vrh Croatia
2004
It's a silver half dollar and it was plated for a brooch. I would like to get to the original coin again if possible. please help.
Mark Rokes
consumer - Port Charlotte, FL, U.S.A.
2006
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"