Daniel Smith relief inks are professional quality oil-based inks for wood-block, linoleum and intaglio relief printing. They are smooth and creamy, yielding crisp prints with a press or by hand. to rduce tack, which may be desirable for hand printing, add a small amount of Daniel Smith Miracle Gel Reducer. We add no drier to most of the colors, and less than .01% to a few. Ink applications can take up to seven days to dry, depending upon the environmental conditions in your studio. For faster drying, you may add a small amount-- no more than 5% by volume-- of Cobalt Drier, available in both 2 ounce and pint sizes. Each of the 22 colors is made with pure burnt plate oil and the finest pigments. Transparencies can be made by adding our Transparent Medium.