Protecting / Sealing Roman coins

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Phil.np44
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Protecting / Sealing Roman coins

Post by Phil.np44 » Sun Feb 25, 2018 11:12 pm

Hi all. I found a nice Magnentius christogragh coin today. It came out of the ground looking real nice with plenty of distinguishing features on it but I made a mistake by running it under a tap and lightly cleaning it with a tooth brush which inevitably took some of the patina from it. And it seems to me to be looking worse and worse all the time. Does anyone have any handy hints with what to do with it now to stop it looking any worse. Somebody mentioned maybe coating it in some kind of oil.
Thanks in advance
Phil ::g



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thefiggis
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Re: Protecting/sealing Roman coins

Post by thefiggis » Mon Feb 26, 2018 4:30 am

Sounds like it's on its last legs. Any chance of a photo?

(Moved to Cleaning Finds section which will get you more responses)
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Some sort of electrical gubbins(I'm told it's a Deus). In various colours
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Re: Protecting/sealing Roman coins

Post by fred » Mon Feb 26, 2018 8:03 am

I think that I would probably try Renaissance Wax to hold it all together. ::g The problem is that the technique (and all conservation methods) is something that should be practiced on junk before you get on to the better stuff.
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Re: Protecting/sealing Roman coins

Post by Phil.np44 » Mon Feb 26, 2018 8:23 am


Phil.np44
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Re: Protecting/sealing Roman coins

Post by Phil.np44 » Mon Feb 26, 2018 8:26 am

Here you go thefiggis. ::g
Thanks Fred. Will get on Amazon prime now. The sooner the better I think. I’ve put it in a coin bag but there are still bits coming off it ;;z

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Re: Protecting/sealing Roman coins

Post by fred » Mon Feb 26, 2018 9:04 am

Drop me a pm with your details and I'll put a little in the post for you today. :D
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Re: Protecting/sealing Roman coins

Post by Phil.np44 » Mon Feb 26, 2018 10:39 am

Top man. Thanks Fred
Phil

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Re: Protecting / Sealing Roman coins

Post by Roberts » Mon Feb 26, 2018 2:04 pm

Renaissance Wax will preserve and keep the patina moist but to seal and fix the patina on these kind of coins, frail patina you could try.

Paraloid b72 (Irreversible) is a product which is used in the preservation of objects, you can buy this product already mixed and it can be used immediatly on objects. (can be obtained on the internet or specialist stores).

There is also a post on protecting coins that have patina.
Link below
Preserving patina on coins and objects.
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Phil.np44
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Re: Protecting / Sealing Roman coins

Post by Phil.np44 » Tue Feb 27, 2018 8:29 am

Thanks for all your help and advice. Fred is kindly posting me some renaissance wax and I’ve ordered some paraloid for (hopefully) future finds. It does make sense that if a metal object has been buried for so long in moist soil, it won’t take long for the patina to dry out once exposed to air
So I’ll be carrying the paraloid with me from now on
Cheers
Phil ::g ::g

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Re: Protecting / Sealing Roman coins

Post by Koala » Tue Feb 27, 2018 11:05 am


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