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- - Any Rust Proof Proofs? (http://goldismoney.info/forums/showthread.php?t=388529)

Kin | 07-05-2009 05:02 PM
Any Rust Proof Proofs? Silver coins are real pretty, until they rust, then they look b**t ugly. Why don't Mints use any rust and scratch proofing finishes on Proof coins? I mean an added $5 on an already $20-40 above spot isn't going to matter for tha extra protection

agmom | 07-05-2009 05:08 PM
Re: Any Rust Proof Proofs? "Rust?" I assume you mean tarnish, or oxidation? Many proof, and even some bullion coins come in an airtite-type capsule. It is the contact with impurities in the air (primarily sulphur) that cause tarnish. The more you can keep your coins in an air tight environment, the less tarnish you will see. There are several aftermarket coin capsules available. In the coin world, they call tarnish "toning." I'll leave it to a numismatist to explain the desirability of that!

Kin | 07-05-2009 05:25 PM
Re: Any Rust Proof Proofs? Quote:
Originally Posted by agmom (Post 1802125) "Rust?" I assume you mean tarnish, or oxidation? Many proof, and even some bullion coins come in an airtite-type capsule. It is the contact with impurities in the air (primarily sulphur) that cause tarnish. The more you can keep your coins in an air tight environment, the less tarnish you will see. There are several aftermarket coin capsules available. In the coin world, they call tarnish "toning." I'll leave it to a numismatist to explain the desirability of that!
Desirable? I bought three 2007 Maples. wrapped them in cling film, and a year later they looked like they went through a babys digestive tract

agmom | 07-05-2009 05:46 PM
Re: Any Rust Proof Proofs? The type of plastic you stored them in is the problem. A polyethylene plastic, such as a Ziploc bag is fine. Most plastic wrap however, contains tarnish promoting materials, and can actually adhere to silver over time, requiring solvents to remove. Other materials to avoid storing silver with include newspaper, rubber bands, and non-archival cardboard boxes. I am a long time collector of antique solid silver, so I have a fair bit of experience preserving and storing large, awkward pieces of silver. Coins and bullion are actually quite compact and easy to protect! In future, for longer term storage, either place the coins in airtites (better because you can still enjoy looking at them) or you can wrap a bunch of them in acid free tissue paper, and put them in either ziploc bags, foodsaver bags or the preferred storage method on this site -ammunition cans!

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