Grog, Mulcoa 47-48 Fine Size:2 kg Black copper oxide is a

Black copper oxide is a black powder used as a colorant in the preparation of slips and glazes

but when combined with the typical oxides in a glaze (especially boron) it readily enters the melt

5" Rubber Bands: 38

iron minerals

The 'fired color' swatch represents the stain color when mixed with water

Grog, Mulcoa 47-48 Fine Size:2 kg Black copper oxide is a35 mesh to fine. A hard, fired kaolin clay which is crushed to various mesh sizes and added to throwing and sculpture bodies to increase working strength and to reduce shrinkage. Also aids in drying for larger pieces of unusual thickness. Gray white colour. Safety Data Sheet: SDS