Sea Glass Blue underglaze is a very pale blue-green color at cone 05 and becomes richer and darker under a clear glaze. It remains the same at cone 5, but fired to cone 10 becomes more blue.
(V) Velvet Underglaze
•Apply to unfired clay or bisque
•True to color
•Can be used with or without glaze- Food Safe with proper glaze.
•Cone 05 to 10