What's the difference between gouache and watercolor?

Watercolor contains gouache, but because of the different composition of some materials, watercolor belongs to transparent pigment and gouache belongs to opaque pigment. Of course, in the actual use process, we found that gouache, although covered in theory, is actually translucent and opaque. Compared with other pigments, gouache is cheap and has a large output, so it is one of the good choices for practicing painting foundation. However, compared with other pigments, gouache is inferior in coloring, color development and preservation.

opaque watercolour painting

Gouache pigments are painted after being diluted with water, and the selected paper should have a certain number of grams, not too thin and too slippery. You can use professional gouache paper, or you can choose sketch paper and watercolor paper.

Gouache paper, sketch paper

The chalk used can be similar to a watercolor pen, or you can choose a cheaper pen. Generally, gouache on the market is made of bristles, wolfsbane and nylon.