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Muriatic acid and copper

2002

I need to change a copper roof to the color of green as to where it looks as if it has age. I've been told to use muriatic acid [affil links]. I'm unsure how to do this. Is there a solution to this? Or is it done straight muriatic acid?

Please let me know,

Dan Davis
painting company - Carl Junction, Missouri

Do an Internet search for 'antiquing copper,' 'copper patina' or 'verde copper' to find a product that can be brushed or sprayed and allowed to dry (many products require immersion and/or rinsing).

Ken Vlach [deceased]
- Goleta, California

Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2002

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