Copper Oxide, Black Size:1 kg borax produces bright colors

borax produces bright colors

taper off toward the bottom of the ware to prevent glaze running of the piece onto kiln shelves

smooth gloss finish to your work

Requires 32 parts water by weight per 100 parts plaster

The exceedingly small particle size of the material increases shrinkage

Copper Oxide, Black Size:1 kg borax produces bright colorsBlack copper oxide is a black powder used as a colorant in the preparation of slips and glazes. It can act as a flux and produce more fluid glazes. In oxidation firings, it typically produces greens, while its reduction fired result is red. Because it contains a higher percentage of copper than copper carbonate, the fired color with copper oxide is more intense than copper carbonate. Chemical Formula: CuO Synonyms: Cupric Oxide, Black Copper Oxide