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Date: | Sat, 16 Feb 2008 13:21:48 -0600 |
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Hi Jack!
Here's something I found:
Green Patina Formula:
2 parts
white vinegar
1 1/2 parts
non-detergent ammonia
1/2 part
non-iodized salt
Application:
a.. Clean fixture with Windex-type cleaner.
b.. Premix patina solution in Windex-type spray bottle
c.. Spray Windex cleaner on fixture to break surface tension,
leaving it on when you apply patina solution.
d.. Apply patina solution by spraying onto fixture, preferably in
the early evening on a high humidity night.
e.. Allow to set for 1 hour, then reapply solution observing where
you missed applying on the first coat. If there seems to be oil that is
repelling the patina solution, clean it off with the Windex cleaner.
f.. Allow to sit overnight. In low humidity desert areas, use a
plastic bag to create a tent over fixture (without making contact with it)
to help keep the humidity high during curing. If there is low moisture in
the air, the solution will dry out without creating the patina effect.
g.. The result will be a bright green powdery patina. Do not rub
off. In time (and re-applications) this finish will become permanent. The
brightness will fade with time. To reduce green, cut back on the salt
content. Color and effect is greatly affected by application ambient
temperature and humidity.
back to top
Darkening Copper & Brass (penny brown):
Brown Patina Formula
Hot Water
Baking Soda
Place the hot water in a bottle. Add enough baking soda until it will
not dissolve anymore when shaking the bottle.
Application:
Same as Green Patina. This finish is not as powdery and will not need
as many re-applications
Steve
----- Original Message -----
From: "Jack Olson" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, February 16, 2008 12:30 PM
Subject: [TN] NTC: Tarnishing Copper
> Does anyone know how to make copper tarnish FASTER?
>
> (I want to make a wire sculpture look older)
>
> Saturday project.... Jack
>
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