Fabric Screen Printing Ink offers artists more vibrant colors, greater coverage, smoother workability, a softer hand and easier cleanup than any other screen printing ink on the market. All colors carry the AP Seal and are permanent on fabric once properly heat set. Speedball Waterbased Fabric Screen Printing Inks are great for use on light-colored cotton, linen, blends, polyester, rayon, and other synthetic fibers (except nylon). Use the process colors for 4-color process printing. The inks can also be brush-applied to tennis shoes, canvas bags, and more. Use them with water-resistant hand-cut films or direct emulsions. Clean ink from screens with water. Inks should not be allowed to dry in the screen. All garments should be pre-washed. After printing, allow to dry and then heat set with a household iron at medium setting for 3 to 5 minutes on each side.