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How can Copper Oxide patina (Green Copper) be achieved on Copper Surface

2005

Sir,

I am a small manufacturer of Copper patinated Sheets

I tried many times to patinate the Copper Sheets to a Green Color by using copper nitrate [affil links].

Patination forms but wipes off by a touch of the hand.

Somebody suggested me to do Copper Oxidation by painting Copper Oxide on sheets.

Does this method work for Green Patination?

Please help

Thanks & best regards,

G D Garg
Girraj NF trading - New Delhi, INdia

CABRA spray patina for copper:
copper sulphate...3 gr
ammonium sulphate [on eBay or Amazon] ...90 gr
ammonia [on eBay or Amazon] (25%).......1 ml
water.............1 lit
Good luck!

Goran Budija
- Cerovski vrh Croatia
2005

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