Speedball 3512 Water-Soluble Block Printing Ink &ndash; Bold Color With Satin Finish AP Certified 2.5 FL OZ, Dark Yellow INDUSTRY LEADING BLOCK 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 printmaking ink is ideal for block and relief printing. Use this premium ink on linoleum, wood, and Polyprint. INK HAS EXCELLENT TACK  This block 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 block printing ink. When you are done with your project the ink will come right off you using soap and water. AP CERTIFIED AND SAFE  The Speedball Block Printing Ink is safe for adults and children to use. It is ACMI AP Non-Toxic and conforms to ASTM D-4236.