Adirondack color wash dye spray ink is an acid free, non-toxic, water-based dye developed for use on paper, fibers, fabric and more. For permanency, heat set inks with iron or heat tool. It is new and improved bottle and sprayer. This earthy and bright spray dyes will colorize paper fibers fabric wood paper clay and other absorbent surfaces. Ideal for paper crafters mixed media and fabric artists. It Conforms to ASTM D4236 standard. Available in 2-ounce bottle.