I haven't tried Verdi-Care but have experimented with several similar products & home remedies over the years and they all seem to stain the coin to varying degrees,as soon as you put the Loupe on its apparent the Coin has been treated.
I normally don't touch Coins in any way but Verdi has to be treated IMO,i originly used to seal them in a 2+2 to stop access to Air/Oxygen but it didn't make any difference the Verdi was still eating into the Coins a year later.
I'm sure some of the dealers that post on this Forum would know the tricks of the trade to treat Verdi.
I normally don't touch Coins in any way but Verdi has to be treated IMO,i originly used to seal them in a 2+2 to stop access to Air/Oxygen but it didn't make any difference the Verdi was still eating into the Coins a year later.
I'm sure some of the dealers that post on this Forum would know the tricks of the trade to treat Verdi.






















