This new chromacryl painting medium is the most important additive for students learning to paint. When students reach a stage in their learning process whereby they need to be able to over paint to develop their paintings it is important to be able to control and gradate the edges of the wet paint being applied so that it merges with under painting rather than simply blotting it out. Sophisticated acrylic paintings with gradations are very difficult to do without the use of this medium.