How do I paint a metal front door to look like aged copper?

Susan Lawrence
by Susan Lawrence

Hi. I just bought my first home at the age of 59. I would like to paint the front door made of metal and glass, and security door a weathered copper. I don’t mind a little green patina, but would like it dark in areas too. I’m having a hard time finding what I want on line. My friend tell me I can’t do this because it’s an exterior door. Please help!

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