theloneknight
Newbie
- Jul 27, 2008
- 2
- 0
Here is a free PDF cleaning guide that has many of the techniques I use.
http://nobleromancoins.com/down.php?file=art.of.cleaning.coins.pdf
It is published by a reputable coin dealer I have purchased coins from many times.
I also use the Galvanic Wrap Method:
Mix up a 5% solution of Sodium Carbonate (5 grams of sodium carbonate in 100ml of
deionized water) and you wrap the coin in a double layer pocket of
aluminum foil, add some of the solution inside the wrapping and then
submerge this into a container with the rest of the solution. Let this
set for about 3 days then check the progress. The aluminum foil will
deteriorate since it is acting as your sacrificial anode in the
process. You can continue this process indefinitely until the coin is
clean since it is a very mild technique.
I have had success with this method on many coins, but others sometimes still
needed electrolysis cleaning even after this process.
Measurements:
5 grams (1 heaping teaspoon)
100ml = Half cup or about 3.5 Fluid Ounces
Method Source:
The Archaeologist's Manual for Conservation A Guide to Non-Toxic,
Minimal Intervention Artifact Stabilization
Rodgers, Bradley A.
2004, 220 p., Soft cover
ISBN: 0-306-48467-6
I am also successfully using the Air Abrasion Method with sodium carbonate as the blast media and a mini sandblaster.
I hope others find this information useful.
I will try to answer any questions to the best of my ability.
http://nobleromancoins.com/down.php?file=art.of.cleaning.coins.pdf
It is published by a reputable coin dealer I have purchased coins from many times.
I also use the Galvanic Wrap Method:
Mix up a 5% solution of Sodium Carbonate (5 grams of sodium carbonate in 100ml of
deionized water) and you wrap the coin in a double layer pocket of
aluminum foil, add some of the solution inside the wrapping and then
submerge this into a container with the rest of the solution. Let this
set for about 3 days then check the progress. The aluminum foil will
deteriorate since it is acting as your sacrificial anode in the
process. You can continue this process indefinitely until the coin is
clean since it is a very mild technique.
I have had success with this method on many coins, but others sometimes still
needed electrolysis cleaning even after this process.
Measurements:
5 grams (1 heaping teaspoon)
100ml = Half cup or about 3.5 Fluid Ounces
Method Source:
The Archaeologist's Manual for Conservation A Guide to Non-Toxic,
Minimal Intervention Artifact Stabilization
Rodgers, Bradley A.
2004, 220 p., Soft cover
ISBN: 0-306-48467-6
I am also successfully using the Air Abrasion Method with sodium carbonate as the blast media and a mini sandblaster.
I hope others find this information useful.
I will try to answer any questions to the best of my ability.
