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Subject: Copper bell

Copper bell

From: Dion Teles <dion>
Date: Sunday, January 25, 2004
The Antiga Si Church, in Rio de Janeiro, Brazil, has five copper
alloy bells that we wish to clean without losing its green oxide
patina. Dirt comes mainly from automotive pollution and pigeon

We tried to apply a cloth soaked with water and neutral detergent
than gently rubbing with nylon brushes. The result was almost null.

Do anyone has an experience to share about this or similar issue,
like cleaning statues?

Eng. Carlos Dion M. Teles
Caixa Postal 493
Sco Carlos - SP 13560-970
Rio de Janeiro
+55 21-9312-3919

                  Conservation DistList Instance 17:52
                 Distributed: Sunday, February 1, 2004
                       Message Id: cdl-17-52-023
Received on Sunday, 25 January, 2004

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