nbboy1123 said:
Do you remove the plastic that your silver bars come in, or leave it on? I hate the feel of the plastic, but I would assume they help keep the bars from tarnishing. Any words of wisdom to this topic?
I have collected numismatics for 30 years now and this is a problematic issue.
The first question I guess is wether you hold your items short term or are in it for the long haul.
Until recently coin holders, albums any plastic used to encapsulate PM's have most likely had solvents in the plastic, a similar problem as with old photo albums. This can lead to some really nasty surprises in particular after a few years. I have heard of one case in Germany where a collector revisited his (very large,rare and expensive) silver collection after 15 years in a vault and almost all of it was ruined.
Silver does react with its environment and develops naturally a patina (simple wrapping or even capsules will not prevent that!!). This process (difficult but not impossible to replicate artificially) can add to the authenticity of the item. Any Silver older than 20 years that does not have some kind of patina would generally have been cleaned. Vacuum sealing in special suitable plastic may prevent it (I have no experience). 90% of coins on Feebay are cleaned. Most astute collectors will not touch such items.
It is in my view very pretty, when colours up to the full rainbow spectrum develop, and it adds to the character and history.
However, the other camp would like their items to look as if they had just been minted. I understand this view although I don't share it. There is also the issue of the "german guy". So what to do?
There are many tricks, expensive baths and more expensive cleaning agents on offer for all sorts of PM's. In the case of Silver it is all rubbish. Any abrasive cleaning (i.e. toothbrush and toothpaste, baking soda) or aluminium foil and boiling water don't work well. Abrasive cleaning certainly destroys the surface of any silver item and aluminium (many different grades and manufacturers) and boiling water for one may leave ugly stains. You may as well put it in the washing machine.
Dirt is best removed with a sonic cleaner (can be expensive for bullion sized items).
But there is light at the end of the tunnel for those that want to remove the patina (tarnish). Lemon juice - I am not kidding.
Any concentrated juice from the local shop will do. If you wish you can use freshly pressed Lemons as well.
Try this at first with a less valuable item, best is a coin!
1. Pour the juice in a container (translucent glass is best) that will hold your item as well, with enough space around the edges. Fully submerge your item. You can dilute the juice if you wish with water (distilled is best). The cleaning time will depend on the condition of the item. If it is very soiled or stained (even by paint) it will take longer. Let it sit for a few hours and inspect. This can be done for even two or three days if necessary.
2. Take the item out of the bath. The juice (depending on how soiled) may have discoloured towards a greenish yellow. That is normal.
3. Place carefully on a layer of baking soda. The soda will react with the juice and fizz up. This is a wanted reaction that neutralises the acid in the juice.
4. Then place under running tap water to clean thoroughly. If there is still residue - repeat. If there is still residue after that you can try to slightly rub the soda over the surface after the bath (remember the soda as fine as it is, is still abrasive) with your fingers.
5. Place to dry on a linen cloth and fold the cloth over the item (you don't want lime stains from the water)
You should not touch Silver with bare hands. Our hands have natural chemicals on them that may permanently damage Silver if not cleaned off. Gloves are inexpensive and still allow you to feel your items.
This process also works on a number of derivatives (AgCu, CuNi, Ni, NiCu) Do not try this on Copper, Gold or Bronze!!!!
This way you can enjoy the feel of your Silver without the ugly wrapping and rejuvenate when you see the need to do so.
Cheers
Hagen