Water colors are specially used for painter. They may be arbitrarily mixed with water and still keep their strong firmness with different colors harmonized steadily without any mutual chemical reaction. It can be diluted with water in different proportions to acheive the effect of transparent color high transparency, when colors overlap, the following color will come through. The bright color degree is not as good as color ink, but the color is deeper, suitable for the people who like quaint tone.
Their charming colour,
firmness to resist sunlight,
transparency and excellent restoration.