For which purpose is gouache paint commonly used?

Gouache paint is commonly used in graphic arts due to its unique properties that lend themselves well to this medium. It is an opaque watercolor that can produce rich, vibrant colors and is often used for illustrations, design, and various types of visual communication. Its ability to be layered and to create solid, vivid areas of color makes it especially suitable for graphic arts, where clarity and color depth are essential.

Additionally, gouache's fast-drying characteristics allow artists to work efficiently and make quick alterations, which is particularly beneficial in commercial applications like advertising and editorial illustrations. The combination of these qualities ensures that gouache remains a popular choice among artists and designers working in graphic formats.