Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Green Copper Patina
I desire to treat copper roofing and outdoor lighting fixtures to acquire a green patina without going through the "browning" stage. What chemical may I use to accelerate this process?
Don Kutil- Troy, MI USA
2003
WHAT CHEMICAL DO I USE TO ACHIEVE THE GREEN EFFECT RAPIDLY ON BRIGHT NEW COPPER WITHOUT GOING THROUGH THE BROWN STAGE FIRST. ALSO, DOES THE CHEMICAL I USE HAVE ANY ADVERSE SIDE EFFECTS WITH ROOF BOARDS, ASPHALT AND FIBREGLASS ROOFING MATERIALS?
DALE PITCHURE- BATTLE CREEK, Michigan
2003
2003
Green for copper :
3 gm copper sulphate
⇦this on
eBay or
Amazon [affil links]
90 gm ammonium sulphate
⇦this on
eBay or
Amazon [affil links]
1 ml ammonia
⇦this on
eBay or
Amazon [affil links]
25% 1 lit water
- Cerovski vrh Croatia
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