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PVC x Ancient coins, what do I do?

Collector18Collector18 Posts: 2 ✭
in World & Ancient Coins Forum

Hi,

I've got these two coins, a Kanishka I circa 150 bc and a roman Constantinus II circa 340.
Both contaminated by PVC. So far no surface damage present, only sticky to touch.
How can I remove it safely? 
We have no one who do that here in Brazil, so I'm on my own.
Common coins I do it with acetone (nail polisher remover as 100% pure acetone is not available for sale without a special permit).

Thank you in advance.

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    7Jaguars7Jaguars Posts: 7,254 ✭✭✭✭✭

    Isopropyl alcohol may work. Other more toxic substances that should be used in a well-ventilated area include xylene.

    Love that Milled British (1830-1960)
    Well, just Love coins, period.
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    Namvet69Namvet69 Posts: 8,671 ✭✭✭✭✭

    Acetone based nail polish remover should work. Not as strong so the soak needs to be longer, just make sure the npr actually has acetone in it. Xylene is a strong solvent, extremely flammable. Be careful. Peace Roy

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