Don in SJ
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- May 20, 2005
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- #141
Re: 1840-1860 era Antique Photo Portrait- Restortation COMPLETE! - 6 March
Dan
I wanted to try an match what the Conservators did to restore the Dag's on the Princeton University website and they did what they called "Electrocleaning" using Distilled Water and Ammonium Hydroxide. Of course they never gave the ratio amounts, so that was just a gamble on my part, educated gamble though, since the 3 to 1 was basically what I used on the soak to get rid of the copper corrosion.
As far as using what we consider the standard electrolyte for doing coins, iron, etc, well, I sure would not have even thought of it, especially since a large portion of what I had to restore was copper and the thin plating was the silver and some mercury.
I believe salt might have been a disaster, with the copper and silver both being on the same plate, but not sure, anyway, I just tried to do as the conservator did with the Princeton Dags......
Don
Captn_SE said:I always use non-iodized salt and lemon juice as the electrolyte for electrolysis of my silver. Have you found your 3-1 water/ammonia solution more effective or about the same?
Congrats again,
CAPTN SE
Dan
Dan
I wanted to try an match what the Conservators did to restore the Dag's on the Princeton University website and they did what they called "Electrocleaning" using Distilled Water and Ammonium Hydroxide. Of course they never gave the ratio amounts, so that was just a gamble on my part, educated gamble though, since the 3 to 1 was basically what I used on the soak to get rid of the copper corrosion.
As far as using what we consider the standard electrolyte for doing coins, iron, etc, well, I sure would not have even thought of it, especially since a large portion of what I had to restore was copper and the thin plating was the silver and some mercury.
I believe salt might have been a disaster, with the copper and silver both being on the same plate, but not sure, anyway, I just tried to do as the conservator did with the Princeton Dags......
Don