Cleaning your coins. | Coin Talk
Jun 10, 2006· The ads for the following product give one the impression it is completely and totally fine to use it on coins. KOINSOLV is a neutral, non-flammable solvent used to clean contaminants such as oil, tape, PVC, and grease from coins, tokens or medals, etc. KOINSOLV does not change, toning or luster - even on copper. KOINSOLV is the ideal cleaning solvent to use on all your prized coins.