A colourant is something added to something else to cause a change in colour. Colourants can be dyes, pigments, inks, paint, or chemicals. In MMU, colarants come mainly from naturally occured Mica and Oxides - hence, you'll see our colorants are divided as such. As the name implies, the Proprietary Color Blends have been developed by us and they are only available from The Conservatorie.
