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 Replies: 32 / Views: 2,432 |
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Valued Member
Italy
284 Posts |
Hello folks!  I'm sharing with you my third cleaning trial! This time, I got my hands on some verdicare!  Process for this one was (ignoring all rinsing & drying):  24h acetone 24h water x 2 24h acetone 1h verdicare immersion & scrub method afterwards (as per verdicare guide) What do you think? I am wondering if I should try a second run with verdicare with a longer soaking time. Obviously will need to rinse in acetone/water before that. Here's the before:  ..and here's the after:  Looking forward to your expert opinions! Wishing everyone a great day!  Edited by joe_77
05/16/2024 1:12 pm
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Bedrock of the Community
United States
94367 Posts |
Can't hurt, but I'm thinking there's only so far you can go with this one.
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Bedrock of the Community
United States
19142 Posts |
You may have achieved about as much as can be expected with this example.
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Moderator
 United States
188052 Posts |
I agree. It does look better, but this is more tone than verdigris, so VC was going to have minimal effect.
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Valued Member
 Italy
284 Posts |
Thank you all!  So the reason I was considering a second run was the verdigris still present in the "incuse" areas; like the B of Elizabeth or the R of Australia. While with the naked eye it's basically invisible, under magnification at least, it's pretty visibile and it seem it hasn't been deactivated? They are so small though.. maybe the verdicare didn't even touch them because of air bubbles? What do you think? Obviously this is a cull coin but the learning process is still valuable. Cheers |
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Moderator
United States
188052 Posts |
Another round could not hurt, especially in the pursuit of education.  |
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Moderator
United States
95443 Posts |
I see some slight improvement, which means that it can possibly get better - give it another try.
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Pillar of the Community
 United States
5666 Posts |
Try overnight in VerdiCare. No need for additional acetone.
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Valued Member
Italy
284 Posts |
Quote:
Try overnight in VerdiCare. No need for additional acetone. As far as I understood, now the coin is covered with a thin film of something which is the protective layer left by VC. That something is water/acetone soluble*. So my reasoning was: first I remove that, then try another round?  * from the istructions: 99.9+% of the surface conditioner may be removed with water and/or acetone |
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Pillar of the Community
United States
5666 Posts |
Whatever you remove with acetone you'll be putting back on with more VerdiCare.
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Valued Member
Italy
284 Posts |
Quote:
Whatever you remove with acetone you'll be putting back on with more VerdiCare Yep but the goal here is to deactivate the verdigris and for that the fresh solution needs to be in contact with the verdigris. Right now the surface conditioner is in the way ... I think |
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Pillar of the Community
United States
5666 Posts |
I doubt removing the residual VerdiCare is necessary, but either way should be fine.
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Bedrock of the Community
United States
94367 Posts |
Basically...it's a goner.
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Moderator
United States
188052 Posts |
Quote:
Basically...it's a goner. I would not go that far. Some time in a natural environment may even out the tone.  |
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Bedrock of the Community
United States
18654 Posts |
i don't think its worth expending the verdicare anymore on this one. I'm betting it removed everything it could have at this point.
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Valued Member
Italy
284 Posts |
Good morning! Sorry for the late reply but life keeps me busy! Few interesting observations to share: I soaked the coin for ~4 hours in acetone. This removed completely the surface protector and the "darkened" verdigris surfaces. It almost looked like the verdicare "painted" the verdigris black and once removed there was still the same verdigris below. This led to me think that my first application was not nearly long enough and probably only managed to act on a very superficial layer. I then proceeded to soak for an abundant 24hs period the coin in verdicare. Afterwards, I proceeded to gently "touch" the areas with lots of verdigris with a softened toothpick (imagine a small painter brush) to try to detach some verdigris. Indeed the toothpick picked up a darked green color. Finally, proceeded to dry the coin from verdicare with the "scrub method" and air dry for 3-4 days. Below is the final result. I think there is a huge difference from the first verdicare application. Still some traces of verdigris, though. What I observed makes me think that -- if I wanted -- I could repeat the above process until no more verdigris is left after the surface protector is removed by acetone. Logically this could be beneficial for the areas with verdigris but maybe not for the parts without it.  Looking forward to your thoughts and observations! |
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Replies: 32 / Views: 2,432 |
Posted 05/16/2024 2:41 pm
