Speedball’s Fabric Screen Printing Ink offers artists more vibrant colours greater coverage smoother workability a softer hand and easier cleanup than any other screen printing ink on the market. All colours carry the AP Seal and are permanent on fabric once properly heat set. For best results when printing on dark fabric Speedball Opaque Fabric Screen Printing Inks are recommended for vibrancy in colour and opacity in coverage. Soap and water clean-up.