USA USA - Could the Statue of Liberty be buffed back to bronze?

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Nov 24, 2023
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Abuja Nigeria
There's a fascinating backstory behind the succinct response, which is no, not really.
Instead of bronze, the Statue of Liberty is composed of copper. Given that pennies are also made of copper, it gleamed when it was first put together. But due to its opulent location in New York Harbor, the copper face suffered an unrelenting assault from the elements over the years, particularly salt water.

Patination is the chemical change that occurs when copper combines with oxygen over time. That's the source of Lady Liberty's trademark verdigris, which is another word for green patina. In essence, it's a layer of copper carbonate that accumulates through oxidation and weathering over time.

Your pipes glow green for the same reason. Actually, a natural tarnish builds a protective layer over the copper underneath, not corrosion per se. Really nice, huh?

Theoretically, you could now polish it back to its original penny brilliance and remove the patina. However, that would not only require a huge amount of work and be unfeasible, it would also eliminate the barrier. Without it, the patination process would simply begin anew since the underlying pure copper would be exposed to the environment.

Furthermore, let's face it—we've come to adore that shade of green. It now becomes a component of the statue's identity. It would seem strangely foreign, akin like removing the beard off Abraham Lincoln's memorial.

In any case, I'm a bit of an expert on the relationship between metal and the environment because I live in Portland, Oregon, where bridges are exposed to a lot of environmental stress.

The lesson of the patina is quite fascinating, even if you're not near the salty mist of New York Harbor: that over time, something we may consider to be wear can actually protect and symbolize resilience.
 

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