Opaque white glazes should be applied generously enough to achieve opacity but 'crawling' can occur if they are too thick.
Glazes marked LS contain a low-solubility lead frit. For ware in contact with food or drink we would recommend using glazes marked L (leadless). For glaze preparation advice please see the main powdered glaze category header here.
Powdered glazes, once mixed with water according to the recommended guidance, are suitable for dipping, pouring or spraying onto the piece. They are not suitable for brushing-on without addition of a glaze binder such as Pehatine. If brush-application is intended, we would recommend you select one of our ready-mixed brush-on glazes instead.