Speedball 003573 Fabric Block Printing Ink &ndash; Premium Fabric Block Printing Ink 2.5 FL OZ (75CC), White BOLD OPAQUE COLORS  Water-miscible, oil-based Fabric Block Printing Ink from Speedball produces bold, opaque colors. With a wide variety of ink to choose from, there is a color for every project USE ON FABRIC & PAPER  The versatile block printing ink creates beautiful results on both fabric and paper. Use on cotton, polyester, linen, rayon and other synthetic fibers (not for use on nylon). This ink really pops on paper and cardboard too NO HEAT SET REQUIRED  This ink requires no heat set to get a permanent result! Simply let the ink dry overnight and it will be dry to the touch in the morning. Wait at least one week before washing QUICK, EASY CLEAN-UP  There is no messy clean up when using this block printing ink. Ink cleans up easily using soap and water ACMI AP CERTIFIED  Speedball Fabric Block Printing Ink is safe for adults and children to use. It is ceritfied ACMI AP Non-Toxic and conforms to ASTM D-4236