Teal Blue Underglaze is a deep blue that provides a rich sapphire blue shade at Cone 05, transforming into a medium deep blue at Cone 5 and a very dark blue at Cone 10. Applying a Clear Glaze over Teal Blue will noticeably deepen the color at all firing temperatures.
Due to potential variations in raw materials between production batches, we recommend performing a test firing on test tiles before actual use for every new batch number of color.