These ready-to-use Specialist Crafts Underglaze Colours are doubly versatile; they can be used as a base colour on greenware or bisqueware and can be fired at earthenware or stoneware temperatures. Bring the colours to life with a gloss finish; spray brush or dip into a clear earthenware or stoneware glaze (our swatches show the colours coated with and without a clear gloss glaze).Stir well prior to use.Safe for dinnerware as they are non-toxic and lead-free.Firing range 1000°C-1250°C.