Spectrum's 1070 Brushing Media is a simple gum solution that can be added to any glaze, underglaze, etc. to improve its brushing characteristics. The basic effect of adding Brushing Media to a product is to lengthen the drying time after the glaze is brushed on the piece. It also assists in glaze suspension.
Brushing Media can be used if you are trying to convert a dipping or spraying glaze into a brushing glaze. The amount of Brushing Media that should be added depends heavily on the particular circumstances. A rough guideline is to add about 5% of the volume of the product being adjusted. Keep in mind that the Brushing Media is largely water and that adding significant quantities of it will dilute the strength of the original product.