Speedball 3600 Water-Soluble Block Printing Ink &ndash; Bold Color With Satin Finish AP Certified 5 FL OZ, Black INDUSTRY LEADING PRINTING INK  This block printing ink receives rave reviews from artists and students for good reason. The wide variety of ink colors are all ground and milled to the perfect consistency which create bold prints that dry to a rich, satiny finish. CREATE GORGEOUS PRINTS  The water-soluble block printing ink is ideal for block and relief printing. Use this premium ink on linoleum, wood, Speedy-Cut Easy, Speedy-Cut, Speedy-Carve and Polyprint. INK HAS EXCELLENT TACK  This printing ink has a tack which ensures even coverage and allows you to produce consistent, spectacular results every time. QUICK, EASY CLEANUP  There is no messy clean up when using this black printing ink. When you are done with your project the ink will come right off you using soap and water. AP CERTIFIED  The Speedball Water-Soluble Block Printing Ink is safe for adults and children to use. It is ACMI AP Certified and conforms to ASTM D-4236.