Copper Oxide (Black) - 100g (MCOB1)

The Clay Warehouse Inc. Verified independent store

→

CuO. 2% added to most glazes produces a clear green. In alkaline glazes the colour shifts to turquoise blue. At 5% or more, metallic surfaces develop. Fired in a reduction atmosphe re, red colours are achieved with ½% or less. To substitute for copper carbonate, use 71% of the recipe requirement. Note: Glazes become increasingly susceptible to food acid attack as copper oxide levels increase. Show more