Some colors vary at higher temperatures. Safe for spray application. The underglazes fire true to color from the jar and can be easily applied to wet clay, greenware, or mature Cone 04 bisque (1971 F / 1077 C). 100% Bee Pure Beeswax Pllar Candles - Etsy Denmark Amaco Velvet Brush-On Underglaze: Avocado 59ml. A ready mixed range of underglaze colours. Maximum firing temperature of 1220oC unless otherwise indicated on... Thank you for the amazing customer service and communication To shade, tint, or customize the color of these underglazes, simply mix them with other colors. When glazed with transparent matte glaze, they take on a soft, satin finish. Colors will intensify when covered with a clear transparent gloss glaze but will lose their matte surface quality. Fire to Cone 06-10 (1855°F–2381°F, 1013°C–1305°C). Mayco Underglaze AMACO Velvet Ceramic Underglaze Paints 2 Ounce Jars -12 Color Set #1 Amaco Underglazes