FAQ

Gouache does indeed work on watercolor paper. The weight and texture of watercolor paper make it ideal for gouache paintings. It effectively manages the gouache’s moisture, enabling easy blending and layering. However, keep in mind that gouache may appear opaquer on watercolor paper than on other surfaces. Depending on your artistic intentions, this can be a benefit or a drawback. 

Adding highlights or fixing errors in watercolor paintings usually requires the use of white watercolor. To create opaque, vivid accents or to lighten areas, it can be used over dry or nearly dry paint. White watercolor paint set is frequently used sparingly by artists to maintain the transparency and luminosity of watercolor paintings while adding subtle details or fixing mistakes. 

Gouache is opaque and permits the layering of light over dark, whereas watercolor is translucent and relies on layering from light to dark. While watercolor has a more transparent and radiant quality, gouache has a matte finish.