Baldwin's patina

Jewelry Discussion
1

Does anyone know what Baldwin’s patina is and where it can be
purchased? Also, many patinas have an extremely temporary
nature. Is that true of this one? Thanks in advance for your
help.

2

Ted, Baldwin’s patina can be purchased from Reactive Metals. I
don’t know the chemical compostion of this patina it may be
listed in the catalog.

And I don’t know the shelf life.
Lisa

3 
Does anyone know what Baldwin's patina is and where it can be
purchased? Also, many patinas have an extremely temporary
nature.  Is that true of this one?  Thanks in advance for your
help.

You can get it at Reactive Metals http://www.reactivemetals.com
It costs $3. for an ounce. It’s for copper alloys. Copper turns
brown. Shakudo turns blue/black. Shibuichi will turn gray to
olive green. It doesn’t color silver, nickel or gold alloys.

Reactive Metals sells and gives an explanation of what these
alloys are. I’ve ordered from this company before, they’re very
good.

Amy O’Connell

4

One of the principle patinas we used in a mokume gane seminar
with Phil last summer was lime sulfur, an anti-fungal agent
(normally) used with fruit trees. It is available in many home
garden centers or agricultural co-ops. We used Ortho brand. As
I remember, we used various dilutions, the strongest being about
1 part lime sulfur to 2 parts water. We also used less strong
dilutions, with some experimentation involved.