Vinegar and Bleach : 6 hours
Drying time : 2 days
Metal : Natural iron
Hydrogen peroxyde + vinegar : 8 hours
Drying time : 2 days
Metal : Natural copper
Hydrogen peroxyde + vinegar : 10 hours
Drying time : 2 days
Metals from top to bottom : Iron dark patina, natural zinc, polished copper
Hydrogen peroxyde + salt : 10 hours
Drying time : 2 days
Metals from left to right : iron light patina, quartz zinc, hand beaten copper