Freckle Underglaze is applied to raw or bisque ware. The Freckle range has a subtle speckle. Underglaze fuses to the clay body during firing. Paper clay should be bisque fired to a minimum of 1080℃. prior to application of underglaze. Apply by brushing, sponging or air brush. Underglaze is suitable from 1000-1280℃. however the colour will not be as intense at high temperatures.