Buy Dr Martin's Radiant Concentrated Watercolour Set of 14 from Cass Art: Dr Martin's Radiant Concentrated Watercolours, a brilliant, concentrated watercolour dye ink for use with brush, pen, dip pen or airbrush. Order at Cass Art.
Martin’s Hydrus Fine Art Watercolors are simply remarkable! These watercolors come to you already in a liquid form. This means that you get a pure, high intensity watercolor that is perfect for use with a spray bottle, oiler boiler or brush.