Brush On Clears
Usage Variations & FAQs
Clear glazes are glass coatings used to completely seal the ware (decorated or undecorated, making the ware impervious to liquids. They are also used to boost the brilliance of the underlying color. Clear glazes can come in different finishes such as gloss (S2101, S2000 and NT-Clear) or matte (C-300).
Choosing a dipping or brushing version of a dipping glaze is dependent on application preference, quantity of glazing and time. Mayco offers pre-made low fire clear glaze in both dipping and brushing formulas. Brushing clear glazes differ from dipping versions in that they contain organic additives, which make the brushing glazes thicker (viscous) than dipping formulas. These additives are meant to improve the flow of glaze from the brush and assist with the even-ness of application, enhancing the fired surface finish. The amount of glaze deposited on the ware is primarily a function of glaze viscosity and the number of applications. Typically 2 applications are required, allowing dry time between coats.
Dipping clear glazes contain fewer organic additives, making dipping glazes less viscous than their brushing counterpart. The amount of glaze deposited on the ware is a function of glaze viscosity and the amount of time left in the glaze. Often dipping glazes are preferred in a studio or production environment where a large quantity of ware is processed. To learn different dipping methods and tips, view our instructional video in YouTube.
Glaze and clay/bisque bodies are both ceramic materials. During the firing process they expand and then contract together; the rate of expansion/contraction can be measured and mathematically stated as a coefficient of expansion.