Go
to your local feed store where they sell
hay, etc... There should be available
bags of copper sulfate crystals used to
keep pond scum down. Use an old food
blender (never again to be used for food)
to turn these crystals into powder.
In a large jar (mayonnaise is good) blend
several tablespoons of this powder with
a pinch of salt in warm tap water.
Before
cleaning your copper-foiled work with detergent
(but after a light windexing) use an old
sock to sop this copper sulfate mixture
over your solder lines and "magic." An aged bronze effect is instantly produced.
A
bag of copper sulfate crystals will last
a very very long time and is considerably
cheaper than the commecial products sold
in bottles.
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