What will get gunk off red copper and leave behind the toning?

airplanenut

Acetone didn't work

nwcs

What kind of gunk?

SirAnthonyAC

Hi,

If the coin is very valuable you may want to consider sending it to the NGC for their conservation. It's their version of properly cleaning a coin but, leaving all the luster and leaving no trace of the fact that the coin was cleaned.

I would venture to guess, it's a similar process as when they clean barnacles & gunk off of gold shipwrecked coins but, in the end... the gold coin looks like it never spent a day in the salts of the ocean.

BTW: what type coin is it and could you toss us a photo???

Anthony

airplanenut

Not very valuable--a few bucks each...

Gunk like this (some have more than this)

BigE

Try Goo Gone, that coin doesn't look that gooey though?----BigE

Proof69Eagles

Brasso!!!!!!!!

Shamika

I'm not seeing gunk. All I see is some variation in toning and maybe some water marks.

airplanenut

Think they're water marks? Any way to get rid of those?

Sequitur

Hey, send it in to NCS. I always like to see the before and after pictures of their copper work.

airplanenut

<< <i>Hey, send it in to NCS. I always like to see the before and after pictures of their copper work. >>

I would, but it's nowhere near worth $15 to start with... and if it were clean, it wouldn't be, either

Coppernicus

Even if they're only "water marks" I'm afraid you're stuck. I know of no method that will remove them without affecting the luster/cartwheel, i.e. it will be detected and BB'd. If you or anyone else ever figures out a way to do this on copper, LET ME KNOW!!! A fortune can be made!

Mike