How to Make Best of Copper Curtain
This letter is in reference to your article on the condition of the copper curtain draped on the east wall of the Thousand Oaks Civic Arts Plaza.
Many people, in mechanical engineering, have had a quiet chuckle over this work of art. But enough is enough. We now have to come to the rescue.
I would like to put forward an idea that has been used in industry for many years to keep the luster on copper and brass. Take the curtain down, dip it in a weak solution of acid, somewhat of the strength of vinegar, about 5% to 6% acidity. Then clean it thoroughly with water, and dry. Then spray it with a clear lacquer.
An example of this process is the lipstick case carried by most woman and they stand up to a most demanding use.
ANTHONY DENNELLY, Oak Park
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