patina
- bbrown
- Posts: 32
- Joined: Mon Feb 11, 2013 6:37 pm
- Location: Inver Grove Heights,MN
Re: patina
Copper sulfate (Root killer)buy at hardware store
1 cup to gallon of water
Copper plates CLEAN steel
My notes say "use respirator"
Old copper penny patina:
2 parts copper sulfate mix,1 part muratic acid,7 parts hydrogen peroxide.
Dip or spray *respirator*
1 cup to gallon of water
Copper plates CLEAN steel
My notes say "use respirator"
Old copper penny patina:
2 parts copper sulfate mix,1 part muratic acid,7 parts hydrogen peroxide.
Dip or spray *respirator*
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- Posts: 71
- Joined: Sat Mar 09, 2013 8:27 am
Re: patina
BME Labstore in Little Canada also has copper sulfate. 4 oz. $5.40, 16 oz. $15.