Colemanite
Description

Colemanite - A powerful flux in glazes - Good for low temperature glazes 900 - 1100. Over that temp. glazes will be shiny & bright. In stoneware glazes it can be substituted for whiting, lowering the melting point, helping  the glaze surface.

Prices
1kg 5kg 10kg 25kg
£2.75 £10.50 £20.50 £43.75