Dr Ph Martin’s Radiant CONCENTRATED Water Colour is a range of transparent, non-toxic, extremely concentrated, dye-based, non-clogging, intermixable, non-permanent, non-lightfast, non-waterproof, versatile, vivid watercolours, designed for use with brushes, airbrushes and technical pens. The colours are primarily formulated for use in graphic arts work on paper surfaces intended for reproduction (e.g. cartooning, illustration, manga, comics and other graphic arts), and are especially popular for airbrushing. They can also be used on leather and wood. For painting over silk, use it in conjunction with alum and salt to make it permanent. They can also be mixed with an additive for tie dying purposes.

Dr. Ph. Martins Radiant CONCENTRATED Water Colour comes in 56 colours in iconic 0.5 oz (15 ml) glass bottles packages with its own eyedropper. Because of its concentrated nature, Radiant CONCENTRATED Water Colour range is slightly less transparent than Synchromatic TRANSPARENT Water Colour range of Dr. Ph. Martins. Like all aniline dye base colours, they are fugitive when exposed to direct sunlight over time. For lightfast, archival grade watercolours, use Dr. Ph. Martin's Hydrus Fine Art Watercolor.

Shake Dr. Ph. Martins Radiant CONCENTRATED Water Colour well before use. Apply it sparingly onto the desired surface. The colours can be diluted with water or blended with one another to get new colours or graduated tones. Pastel shades can be obtained when the colours are mixed with FLO White. Clean the tools with water before and after use.