HELP

[Dynamo76]

I found what I believe is a silver dollar from a pile of asphalt scrap. The coin is caked with asphalt. What will dissolve and clean this?

 

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[jeff of pa]

I would need to see a Pic for what I'm thinking of for sure.

Can you easily carry it ? if you can, My suggestion would be to find a hard surface & Tap it from all angles
with a hammer & see how much you can get to fall off first, to confirm it's worth your time.
Once you got most off, maybe electrolysis (see our cleaning section)

only other thing perhaps light acid, But I would wait on someone else's opinion before that decision
not only could it be dangerous, it could ruin the silver surface for all I know

 

[nsdq]

gas will remove it just do so in well vented area

 

[Dynamo76]

Yes, I can carry it and have knocked off as much of the asphalt that I can. I can see a little of the coin.

 

[Dynamo76]

I'll try that next.

 

[jeff of pa]

OK Price wise probably not worth it but IF Gas Doesn't work
Citrus King Tar & Asphalt Remover

http://citrusdepot.net/info_tar_&_asphalt_remover.html

You May be able to get a small container at Home depot of something

here is something else I don't see a price for.
again perhaps small bottles are available

Cleaning Solutions « Diamond Cutting Solutions

 

[Dynamo76]

Thanks Jeff. I post once I am able to identify the coin.

 

[sagittarius98]

If you can tell it's not a key date and just junk silver, just try to scrub it, you won't remove too much of the silver and there's no difference what condition a coin is in if it's a junk silver coin.

 

[Dynamo76]

Thanks, but there' about 1/8 of an inch of asphalt stuck to the coin. cant I'd it yet.

 

[usandthem]

Gas or WD-40 will remove tar. I don't think you can do any additional damage to the coin that hasn't already been done. I say scrub away with an old t-shirt and gasoline.