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How to clean bronze cuttlery?
by Charles Carr from Toronto, Canada 01/03/2008 Cleaning stains off of bronze cutlery by Norm Brown from Branxton.NSW.Australia 01/05/2006 Does my sculpture have bronze disease and how to I fix it? by MD Saxon from Massachusetts, US 10/14/2005
Keep bronze pieces as clean as possible. Accumulations of dust and dirt can eat into the metal surface. Dust regularly using a soft cloth. Do not rub too vigorously, especially on any protruding parts.
If a bronze piece has been neglected for a long time and is covered with grime, thoroughly clean it with a soft brush. Remove all dust from crevices and notches and then lightly rub the entire surface with a soft flannel cloth. For a more thorough cleaning, carefully wash with a solution of 1 tablespoon of salt and 3 1/2 quarts of water. Rinse well. Polish with copper polish followed by glass wax. If you want a high polish, dip a cloth into liquid wax and apply to the piece. When dry, buff lightly to a high gloss. This wax treatment also may be given to bronze pieces that are kept outdoors. Weathered bronze usually darkens; however, this is natural and does not harm the piece. "Bronze disease" is one of the most serious hazards of bronze. This disease, caused when chlorides and oxygen combine in a damp environment, also attacks brass and pewter. The disease takes the form of a sudden outbreak of small patches of corrosion and is distinguished by rough, light green spots. "Bronze disease" usually can be stopped by washing the piece in repeated changes of boiling hot, distilled water. You may have to soak the object for a week or more in distilled water. If this treatment does not work, consult a museum expert about using a strong solution of sodium sesquicarbonate or have your piece treated by a professional. This article was written by Anne Field, Extension Specialist, Emeritus, with references from Maryland Extension bulletin, Caring for Your Valuables: Brass, Copper, Pewter, Silver Tin. MSU 2003 |
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