Silver coated with black crud
- Thread starter Hook
- Start date
Onaug
Elite Member
I will send you the two methods I know when I get off tonight or earlier if I can.
Try this:
http://metaldetectingforum.com/showthread.php?t=87464
Distilled water, Baking soda, and tin foil. Works great, but takes time. Post #8 on the above thread gives the directions.
http://metaldetectingforum.com/showthread.php?t=87464
Distilled water, Baking soda, and tin foil. Works great, but takes time. Post #8 on the above thread gives the directions.
Is it possible the black crud is not reaction material but an actual coating of hardened tar or some black organic? if so a soak in acetone, fingernail polish remover will not hurt the silver but will soften the gunk to the point it can be removed? Very thick looking coating!
Nic_West_Texas
Senior Member
My silver coins around here get like that.. when you figure it out.. let us know=)
emfederin
Elite Member
A belt sander would probably work...
Bonesquat
Elite Member
I've found coins with the tar stuff on them. Best method for me is aquarium gravel, toothpaste and soap and water mixture in the tumbler. Let it tumble over night. Will get all the gunk off. If it doesn't get it all I guarantee it will after 24 hours of tumbling. Won't hurt the silver either. Just polish it nicely.
