Traditional Gouache Paint
Traditional gouache is opaque watercolor. The opacity is created by adding chinese white pigment. The color is rewettable, and dries to a velvety matte finish.
Gouache: Artist Gouache vs. Designer Gouache
Lightfastness
Artist Gouache typically contains pigments with excellent lightfastness, which is ideal for fine artists. Designer Gouache uses more fugitive pigments, which are typically cheaper, and are therefore suitable for digital reproduction or short-term display illustrations.
Usage
Artist Gouache is best for artworks that need to maintain colour integrity over time, whereas Designer Gouache is perfect for sketchbooks and temporary illustrations, catering more for designers and illustrators.
In conclusion, choose Artist Gouache for lasting artworks, and Designer Gouache for illustration and short-term projects and reproductions.
Read More in 'The Difference Between Artist and Designer Gouache' on Jackson's Art Blog.