Designer Velvets are opaque underglazes that have the same distinction as the original Velvet line with the addition of small specks. When left unglazed, they assume the appearance of velvet or velour with a soft speckle effect. When glazed with AMACO® Transparent Matte or Clear Glazes, they intensify slightly in color. Designer Velvet colors can be used on greenware or bisque. Recommended bisque firing range is Cone 04, but Designer Velvets tolerate a wide firing range with recommended firing temperature being that of the clay used.