The Setasilk Lightening Medium allows for the creation of clearer tones without reducing the quality of the color nor making it more fluid. Transparent and gloss finish. It is meant to be used with Setasilk paints, which are offered in a palette of rich, refined and bright colors with a transparent, glossy finish. These water-based, fluid paints fuse easily with most types of silk (twill, pongee, Crêpe-de-Chine, Georgette, Damask silk, and more) while conserving their flexibility. Setasilk paints also suit many silk painting techniques: outlines, salt sprinkling technique, watercolor, sun printing technique, wax batik, mahaju technique, and more. After air-drying for a few minutes, iron the reverse side of fabric for 5 minutes (cotton setting) OR place in preheated oven for 5 minutes at 300°F (150°C). Once colors are fixed, fabrics can be hand-washed or machine-washed (delicate setting) at up to 100°F (40°C).Conforms to ASTM D-4236. The Lightening Medium is available in a 45ml bottle.