What should I do with this IHC?

How do I get rid of this green stuff on my IHC? If I am not supposed to clean the coin, what am I supposed to do with the coins that I have acquired that have this on them? Any help is appreciated.

 

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Looks like PVC deposits. A quick dip in acetone should remove it.

 

I prefer not to clean any coins but i agree with poppa looks like pvc verdigris ( which means conservation, not cleaning) and a quick dip in acetone should do the trick. Just remember to rinse with distilled water as the chlorine present in tap water could have adverse effects on the surfaces in the long term.

 

that is active PVC.they have PVC remover.

 

Your coin is the exception to the "Do not clean" rule.

It does initially look like PVC damage, which can be removed with acetone (not nail polish remover -- get the pure stuff).

That's an EF/AU coin, and the acetone will set you back a few bucks, so it's up to you whether it's worth it. If you think you might find similar coins in the future, it's definitely worth it.

Read the MSDS, read the safety instructions, etc., use in a well-ventilated area, and get that nasty stuff off that cent before more damage is done!

Best of luck.

 

I am fairly certain that is not PVC, but rather it is corrosion. The color is wrong to be PVC, as is the placement (corrosion typically shows up in the protected areas, where as PVC tends to show up on high points or is more random in its appearance).

Soak it in acetone (pure), and report back what you find.

PVC will dissolve in acetone. Corrosion will show little/no effect. Either way, it is virtually certain that soaking that coin in acetone will not make this coin any worse...Mike

 

I do not believe this is PVC, it is more likely to be verdigris. You can soak in acetone if you like as long as you understand the risks of using acetone and how to use it properly, but you may be able to get more of this off by letting it soak in mineral oil.

 

If you got the coin out of a plastic holder it is caused from PVC,the longer it sat there the more the plastic holder "sweat" on the coin,regular corrosion is "dry" green...PVC holders causes a "wet" look from the plastic "sweating" chemicals that do not "bind". Its really sad when you have whole collections in older album holders,only to find they are all like this.

 

It is important to note that not all plastics will cause PVC damage. A good rule for this is that if the plastic smells like a shower curtain then there is a good chance that it will eventually cause PVC damage.

 

Try soaking it in Coin Care for 1/2 a day.

 

Will coin care,remove this stuff? I know it has a "lemon" smell,and I know its like a "conditioner" But I have no clue what its actually good for?

 

Its good for removing verdigris off copper.

 

Thanks for all the replies. I pulled it out of an old book. I am not saying it has never been in plastic, but I know it was sitting in the coin book for at least 20 years. I will see what I can do with the Acetone and then Coin Care. It might take a week or so before I get all the supplies, but once I do, I will report back. Thanks again for the advice...

 

hey guys do the newer airtites have pvc in them?

 

Im not sure if some people know this,but verdigris is "PVC" on copper.verdigris a green pigment that forms on copper,and attacks it physical properties. it can contain "Copper chloride" PVC is Polyvinyl Chloride.Polyvinyl Chloride is vinyl polymer constructed of repeating vinyl groups,having one of their hydrogens replaced with a chloride group,It is the "chloride group" that effects the copper,the Chloride being an "additive" to the vinyl,does not "bond" long term.epically in humid environments,it "sweats" out of the vinyl,and reacts to the copper coin creating "Verdigris" the green goo.

 

Air Tites are Acrylic plastic no PVC same type of plastic all slabs are made of.

 

That's new to me. Not sure I can agree with that.

 

unfortunately you cannot disagree with scientific fact.

PVC=polyvinyl Chloride-minus-Polyviny=chloride

penny=copper copper+chloride=copper chloride,which=verdigris

 

Sounds like this is a job for... :loud:SuperThad!

-LTB

 

I still don't agree.
Please tell us why PVC will come off with acetone but verdigris will not?