The Schmincke HORADAM Aquarell Watercolors are made from only the finest raw materials. The line features an extensive color spectrum of highly lightfast and resoluble watercolors. They offer a high control of paint flow - even on soft watercolor papers. Each color is bound with Kordofan gum arabic, batch tested to ensure the highest quality is achieved. Dried paint on a palette can be reactivated by adding water.