Cleaning and Lacquering Brass
Overview:
Brass
ornaments and figurines require periodic cleaning and
polishing to bring back that luster appearance they had when
new. Brass
will loose
its luster because of the natural process of tarnishing
caused by moisture and other contaminates in the
environment. Restoring brass requires
periodic cleaning and polishing.
The chore
of polishing brass
is not looked forward to with
pleasure.
It is
a
time consuming and dirty
task.
However,
there is another
alternative whereby you will nearly never have to polish your
brass again, unless you think that the tarnish is a
desirable patina that enhances its look.
Brass used in candlesticks, plates, and other decorative
figurines is a mixture of copper and zinc, usually with a
composition of 30 to 35 % zinc and 65 to 70% copper. More
expensive brass ornaments may include some amount of
aluminum to reduce tarnishing. Brass is a relatively strong
metal that has been in use for hundreds of years in
industrial products and decorative ornaments. Brass items
manufactured in the United States were frequently coated
with a clear lacquer. This prevented tarnishing (corrosion)
that reduces its functionality. Brass door knobs, candle
sticks, and figurines were also treated with a coat of clear
lacquer to reduce tarnishing and preserve their shinny
appearance.
The use of lacquer on decretive brass became a
thing of the past as foreign manufactures got into the
marked with cheaper manufacturing processes. Most decorative
brass imported into the United States today does not have a
lacquering
finish coating,
consequently they tarnish very quickly. This can be remedied
very easily by applying a coat of lacquer yourself. It isn’t
difficult and one standard spry can of clear lacquer will
cover a lot of material.
Before applying a lacquer finish to brass it should be
thoroughly cleaned and polished to a high luster. After the
items are thoroughly cleaned and dry arrange them in an area
that is free of dust and is properly ventilated. Spray the
items with a light coat of clear lacquer. To avoid running
apply the lacquer in an even pattern moving the spray can
nozzle in one direction only. If the lacquer begins to run
use the edge of a paper towel to absorb (wick up) the
excess. Let dry and enjoy not having to clean and polish
your brass for many years.
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