Here is an interesting excerpt from an early scientific fact book: "1 part of powdered silver, chemically prepared by precipitation of a silver solution with copper is rubbed together, dry, with 2 parts of tartar and 2 parts of salt, the mixture is moistened with enough water to make a thin paste, and is rubbed on with a compact stiff brush, bronze, copper, or brass objects will take a very beautiful dull white silver coating.
Of course, in the time this was written, product and work place safety was not a big issue. You would have to be very careful about what chemicals and methods you use from theses old books.
A lot of nitric acid and other dangerous chemicals were used in the various patina recipes.
Reply
Random image
who is chatting
Who's online
There are currently 0 users and 133 guests online.
coloring metal
Here is an interesting excerpt from an early scientific fact book: "1 part of powdered silver, chemically prepared by precipitation of a silver solution with copper is rubbed together, dry, with 2 parts of tartar and 2 parts of salt, the mixture is moistened with enough water to make a thin paste, and is rubbed on with a compact stiff brush, bronze, copper, or brass objects will take a very beautiful dull white silver coating.
Of course, in the time this was written, product and work place safety was not a big issue. You would have to be very careful about what chemicals and methods you use from theses old books.
A lot of nitric acid and other dangerous chemicals were used in the various patina recipes.