Corrosion Question - Coin Community Forum

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Author	Replies: 8 / Views: 1,232
Rupre07 Valued Member United States 176 Posts	Posted 01/04/2013 11:26 pm When early copper coins have corrosion, does the condition get worse over time? * Moved by Staff to a more appropriate forum. * Report this Post to the Staff

vermontensium Moderator United States 16679 Posts	Posted 01/04/2013 11:29 pm Depends on if it's stable or not. It could get gradually worse if it's still accelerating. If there is verdigris or signs of organic substance, it's not a good sign. A small amount of verdigris is sometimes acceptable. swcoin.ecrater.com Report this Post to the Staff
Rupre07 Valued Member United States 176 Posts	Posted 01/04/2013 11:35 pm how bad is this: http://www.ebay.com/itm/1798-Draped...em337ed611b9 Report this Post to the Staff
vermontensium Moderator United States 16679 Posts	Posted 01/04/2013 11:41 pm Fairly severe. The obverse is more than likely stable. I do notice verdigris on the reverse, which will have to be controlled as best as possible. Too bad, it has decent detail. swcoin.ecrater.com Report this Post to the Staff
Rupre07 Valued Member United States 176 Posts	Posted 01/04/2013 11:51 pm thanks vermontensium Report this Post to the Staff
vermontensium Moderator United States 16679 Posts	Posted 01/04/2013 11:55 pm Your welcome swcoin.ecrater.com Report this Post to the Staff
BadThad Bedrock of the Community United States 19937 Posts	Posted 01/05/2013 01:22 am Quote: When early copper coins have corrosion, does the condition get worse over time? Copper corrosion, aka verdigris, requires feed materials in order to grow. Take away feed materials and the corrosion process will essentially halt. The safest approach for coins is to dehydrate them with acetone and put them in an airtite. Then add a couple more layers of protection like ziplocks and tupperware and the coin will last for centuries IMO. Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Report this Post to the Staff
BadThad Bedrock of the Community United States 19937 Posts	Posted 01/05/2013 01:27 am The damage is done on the ebay coin. It's already been corroded, cleaned and corroded again. It's still a cool coin...what a survivor! Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Report this Post to the Staff
buddy16cat Pillar of the Community United States 1536 Posts	Posted 01/05/2013 04:55 am I think that corrosion can be controlled or removed but the damage caused by it can not. Once the coin is eaten, it stays eaten. Once a hunk is taken out of something, it doesn't come back. Report this Post to the Staff
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