Dr. Ph. Martin's Synchromatic Transparent Watercolor Ink 1/2oz Burnt Sienna

Dr. Ph. Martin's Synchromatic Transparent Water Color is a range of 38 colors are designed specifically for work that requires more transparency, such as retouching or hand coloring for photographic papers and films. Each color comes in its own dropper-top 0.5 oz glass bottle and are non-toxic and non-clogging. Works great with a brush and will not clog your airbrush or technical drawing pen. Like all aniline dye base colors, they are fugitive when exposed to direct sunlight over time.