From time to time every collector faces with a problem of coin cleaning. Is it a necessary procedure? So, if you want to clean your coin here are some steps of doing it right, not damaging its structure.
First of all, before you clean your collectable items you should consult with a professional service that is specialized on grading the coins. Cleaning collectable coins can considerably reduce their value. Thus, sometimes coin tone or blemishes caused by putting in view of air can truly add to the coin’s overall value. That’s why you should not clean your collectable, antique coins. Always hold your antique coin on the edge and not on its face. Your fingertips and oils can hurt coin’s value. Even the smallest and not notable scratch can significantly reduce coin’s value.
While cleaning your item you should always use thin layer of Vaseline with a cotton tissue. Lightly wipe the coin until the Vaseline is removed. As a result you will pick up any unwanted dust and dirt, without damaging the structure of the coin and its value accordingly. Be careful while doing this and use an eyeglass. You can use a very soft brush or a tip to apply the Vaseline. And don’t put too much of it on the coin. You need to put on the thinnest layer as possible.
Put your coins in an acetone solution for 5 seconds and then immediately soak your coins in distilled water to get all of the acetone off the coin before allowing it to air dry. If you leave any acetone on your coins it reduces their cost undoubtedly. Do not rub your antique coins mechanically. Because acetone is not an acid, it is solvent. It will not affect the structure of your coins till they are exposed to it for a long period.
Always remember that acetone is flammable. So you need to wear powder-free gloves while using and working with this chemical. If you are using a vessel of distilled water, line the bottom with a napkin. In this way your coins don’t get scratched by hitting against the inside of the vessel. It is obligatory to use 100% acetone. Some products that contain this chemical will also contain others that can destroy the structure of your coin irrevocably.
It is better to store your rare, ancient coins in hard plastic holders, 2×2 sized. Thus, you can always display all of them without any risks of damaging their value and making them dirty. The most important thing is to maintain the containers air-tight, so the coins will not be exposed to the environment around it. Keep your antique coins away from metal. Don’t use any paper, because it contains sulphur that can turn your coins black.