Createx Illustration Colors are refined, water-based airbrush paints designed with the illustrator and fine artist in mind. They are optimized to work perfectly with Dru Blair's Color Buffer System through the Blair School of Art. The colors offer true fine-line detailed performance and allow for rewettable and soft erasing techniques and are not designed to cover as a base color. No reduction is necessary. Illustration Colors atomize and spray excellently through small airbrush tip sizes down to 0.15 mm at low psi settings directly from the bottle. They are lightfast and can be easily erased within 48 hours of the intial application.