Opaque Setacolor colors are available in 25 vivid and intense Opaque colors, as well as 15 spectacular Shimmer colors which glitter with iridescent effects that change with the movement of light. Ready to use, intense and concentrated, the colors are used pure or diluted with water to obtain watercolor effects and are suitable for various techniques. Vivid and bright, the Setacolor Opaque colors have an exceptional covering power to decorate both dark or light colored fabrics. Their rich texture is especially suited for brush work, stencil work and even silkscreen printing. Once applied, simply "set" the paints with an iron or in a kitchen oven. Once fixed, the designs resist machine washing and dry cleaning. Conforms to ASTM D-4236.