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Antiquing of copper surface

2003

Sir

I am a fashion designer and I wish to know how to make copper surface to patina blue green and also brown at home.

Thank you,

Asif Mistry
- Mumbai, Maharashtra, India

2003

Green for copper/copper alloys:
200 gm ammonium chloride
200 gm ammonium carbonate
1 lit water Can be sprayed or brushed on object!

For best results solution must be used on black to brown ground colour
(5 gm copper sulphate
50 gm potassium permanganate [on eBay or Amazon]
1 lit water-hot immersion/
90 C/or 10 gm potassium polysulfide/
20 gm ammonium chloride/
1 lit water- use only fresh solution!).

Goran Budija
- Zagreb,Croatia

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