1910 $20 St. Gaudens - Page 3 - Coin Community Forum

To participate in the forum you must log in or register.

Author	Replies: 33 / Views: 2,859	Page: of 3

sel_69l Bedrock of the Community Australia 21788 Posts	Posted 09/24/2022 10:49 am PVC damage? - Most probably not, with gold coins, and I don't think so in this case, anyway. Hard PVC us known as uPVC (unplasticized PVC), and is commonly found in PVC piping without a plasticizer, because the plasticizer is not needed. uPVC piping has an opaque material added. The softener in clear, soft pliable PVC is Diisononal Phthalate, (C26H42O4) which is a clear, oily liquid. There is no corrosive chlorine in this liquid, which slowly gasses out and can deposit on coins. This oiliness on the surface of the coin would be easily removed with acetone. When the oily DP is contaminated, bronze coins in particular, can be affected, but very much less so, with high purity (900 fine or higher), gold coins Report this Post to the Staff
Roma2021 Pillar of the Community Italy 1130 Posts	Posted 09/24/2022 1:53 pm thanks @sel. The problem is the coin has some dark spots in the fields on the obverse. I can't tell, having not handled this coin before, if it is normal wear or some PVC damage. I suspect it is not damage and I'm just being picky. I doubt the damage would be in the low relief of the fields. I will post another gold coin I am looking at on a different thread. Report this Post to the Staff
Windmiller Valued Member United States 52 Posts	Posted 09/26/2022 8:24 pm If it were me I would keep looking. Not sure what the buff looks like. Report this Post to the Staff
	Replies: 33 / Views: 2,859	Page: of 3

First Page

Previous Page Last 15 Replies

To participate in the forum you must log in or register.

All Forums Category: US Coins and Currency Forums Forum: US Classic and Colonial Coin Grading

Silver Gold Bull US is the United States leading bullion dealer. We deliver gold coins, gold bars, silver coins, silver bars and precious metals to your door. Order today!

The First Dollar, your premier source for bullion and rare coins. See our bullion list on the site and the coin inventory on ebay.

View Last 100 New Topics

View Last 100 Active Topics

Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us | Advertise Here | Privacy Policy / Terms of Use

Coin Community Forum

It took 0.23 seconds to rattle this change.