In order to achieve high standards regarding lightfastness, resolubility and stability, Schmincke Horadam watercolours contains only the finest raw materials. Supergranulating colours are watercolours with a special property: the combination of at least 2 granulating HORADAM® pigments intensifies this effect to "supergranulation". The colours are formulated with pigments from different colour ranges, resulting in additional colour changes besides the granulation effect. This novel, natural structure formation of the colours varies depending on the paper and the amount of water used. The rougher the paper, the stronger the granulating effect. The colours are available in 15 ml tubes. All supergranulating HORADAM® AQUARELL colours have exclusively 4 and 5 stars lightfastness and contain only pigments already known from HORADAM®. The opacity of the colours is predominantly semi-transparent / semi-opaque. All supergranulating colours can be used on their own and perfectly in combination with all 139 HORADAM® AQUARELL watercolours as well as all AKADEMIE® Aquarell watercolours.