The Hub coin cleaning YT video: Updated with Part 2

User avatar
Easylife
Posts: 9437
Joined: Sun Jul 19, 2020 2:47 am
Location: Valhalla
Has thanked: 9565 times
Been thanked: 8453 times

Pete E wrote: Wed Nov 04, 2020 5:50 pm Just one suggestion for anybody considering trying to anneal a silver coin is to use a standard 2000w hot air gun rather than a blow torch..These hot air guns are rated to between 550c and 600c which is hot enough to anneal, but well below the melting point of silver which is around 880c depending on its purity.

You still have to be careful as the surface of the coin can still get an orange peel effect at temps as low as 650c depending on the alloy concerned, but for our purposes it should still be a lot safer than a blow torch...
A blow torch is fine, you just hold it off a bit, thin metal heats almost instantly anyway so makes no odds, lowlight is good. Pressed metal is okay for anealing but cast is not so keen and can easily break.
D2 - 13"x11" coil - audio only.
User avatar
figgis
Posts: 6931
Joined: Thu Jul 09, 2020 6:21 pm
Location: Norfolk (just)
Has thanked: 4008 times
Been thanked: 4683 times

Part 2 uploaded but it nearly wasn't due to the focusing issues, but you can only clean a coin once so a re-take wasn't an option :lol:

I'll get it right for the next one :thumbsup:

https://youtu.be/Hg2sdMbiQAs
Blackadder43
Posts: 3689
Joined: Thu Jul 09, 2020 4:08 pm
Has thanked: 2583 times
Been thanked: 2192 times

Handy update there fella...cheers for that :clapping:
You have a voice for videos :Star:
User avatar
figgis
Posts: 6931
Joined: Thu Jul 09, 2020 6:21 pm
Location: Norfolk (just)
Has thanked: 4008 times
Been thanked: 4683 times

Thanks, chap. I certainly have a face for radio :lol:
User avatar
Oxgirl
Posts: 12551
Joined: Thu Jul 09, 2020 4:21 pm
Location: Oxfordshire
Has thanked: 9387 times
Been thanked: 10823 times

Good job John. I thought you rubbed the foil, not just held it :oops: And I thought you had to use spit :oops: I am now educated, thank you :Luv Ya:

Edit: that’s why I never did it!
Yes I really don’t like Roman coins, I’m not joking
Pete E
Posts: 2698
Joined: Mon Jul 20, 2020 10:05 pm
Location: North Wales
Has thanked: 3505 times
Been thanked: 2294 times

Oxgirl wrote: Wed Nov 11, 2020 8:44 am Good job John. I thought you rubbed the foil, not just held it :oops: And I thought you had to use spit :oops: I am now educated, thank you :Luv Ya:
I have to say I thought it had to be lemon juice with the foil to get the reaction...continue to live and learn!

Just waiting for the video showing cleaning coppers in brown sauce! :D :D
User avatar
figgis
Posts: 6931
Joined: Thu Jul 09, 2020 6:21 pm
Location: Norfolk (just)
Has thanked: 4008 times
Been thanked: 4683 times

No rubbing or spitting required, but a gas mask might be on occasion where you have good quality silver :sick:
Pete E wrote: Wed Nov 11, 2020 12:16 pm Just waiting for the video showing cleaning coppers in brown sauce! :D :D
Not tried that myself yet, Pete, and maybe I'll go through the larder trying out all sorts of condiments :lol:
Pete E
Posts: 2698
Joined: Mon Jul 20, 2020 10:05 pm
Location: North Wales
Has thanked: 3505 times
Been thanked: 2294 times

figgis wrote: Wed Nov 11, 2020 4:45 pm

Not tried that myself yet, Pete, and maybe I'll go through the larder trying out all sorts of condiments :lol:
I can't believe you never did this as a child? The acid in brown sauce would make a 2p come up like new...Coke was another favourite...I have no idea why I found it so fascinating, but I did lol...

On a more serious note, I have often wondered how museum conservators clean silver coins and artifacts? I wonder if it is much different to what we do?
User avatar
figgis
Posts: 6931
Joined: Thu Jul 09, 2020 6:21 pm
Location: Norfolk (just)
Has thanked: 4008 times
Been thanked: 4683 times

Pete E wrote: Wed Nov 11, 2020 5:43 pm I can't believe you never did this as a child? The acid in brown sauce would make a 2p come up like new...Coke was another favourite
The other side of that particular coin is, if they do that to metal what the hell are they doing to your guts? :Thinking:
Pete E wrote: Wed Nov 11, 2020 5:43 pm On a more serious note, I have often wondered how museum conservators clean silver coins and artifacts? I wonder if it is much different to what we do?
Not much more than clean the crud off and remove all moisture, I'd imagine. What we do to coins would have them running to their mothers :D
User avatar
figgis
Posts: 6931
Joined: Thu Jul 09, 2020 6:21 pm
Location: Norfolk (just)
Has thanked: 4008 times
Been thanked: 4683 times

Great video from Holtzhammer on his way of cleaning coins here :thumbsup:
Dave The Slave
Posts: 3487
Joined: Mon Jul 20, 2020 6:36 pm
Has thanked: 10962 times
Been thanked: 3778 times

Well if you had not posted Part 2 John, i would not have accidentally discovered there is a subtitle option for videos as my computer which is probably a test version is mute.
So not only can i clean a Silver coin, at sometime in the future but now i can read along to these videos, although i don`t watch that many.
This from a technology challenged idiot, who used to be able to use the Sky flicker, until the system was upgraded to Q and now it`s beyond my brain cells. Only good thing about it is, recording several programmes at the same time, rather than having to use a sign language version from the early hours.
Cheers, :thumbsup:
Dave.
User avatar
figgis
Posts: 6931
Joined: Thu Jul 09, 2020 6:21 pm
Location: Norfolk (just)
Has thanked: 4008 times
Been thanked: 4683 times

Blimey, Dave, for a second I thought you needed subtitles to understand me :lol:

It's one of YT's features I've never used but it's obviously of benefit :thumbsup:
User avatar
HolzHammer
Posts: 2205
Joined: Wed Jul 22, 2020 6:00 pm
Has thanked: 1536 times
Been thanked: 2664 times

figgis wrote: Thu Nov 12, 2020 9:13 pm Great video from Holtzhammer on his way of cleaning coins here :thumbsup:
Just seen this thanks John much appreciated!
User avatar
figgis
Posts: 6931
Joined: Thu Jul 09, 2020 6:21 pm
Location: Norfolk (just)
Has thanked: 4008 times
Been thanked: 4683 times

Aside from the fact it's a vid that's worthy of attention, a bit of mutual back scratching rarely goes amiss, A :lol: :thumbsup:
User avatar
HolzHammer
Posts: 2205
Joined: Wed Jul 22, 2020 6:00 pm
Has thanked: 1536 times
Been thanked: 2664 times

:thumbsup: ha! hear hear!
What are you planning on showing us next?
Post Reply