Speedball - Night Glo - Phosphorescent Fabric Screen Printing Ink - 8 oz - Yellow - Speedball offers 19 brilliant shades of fabric ink including fluorescent and process colors. Night Glo Phosphorescent colors glow in the dark! For use on cotton, polyester, blends, linen, rayon and other synthetic fibers (NOT for use on nylon). Also works great on paper and cardboard! Washfast when properly heat-set. Non-flammable, contains no solvents, and no offensive smell. AP non-toxic. Can be screen printed or painted on with a brush. Archival qualities. Cleans up with water.