Can I use gouache paints on a canvas?

Answer 1

Gouache is thinned with water to the consistency of condensed milk, then applied with a natural hair (sable...) brush to illustration board. Building up layers isn't a good technique with gouache because any wet paint will interact with existing layers of already dried paint.

Answer 2

Gouache is like water color, it can be thinned with watercolor to a fluid consistency, but it is relative opacity gives it a more rugged quality,ideal for bold,energetic paintings. when wet gouache can be scrubbed,scratched and stumble, and interesting things can happen as color run together and from intricate marble and curdled patterns.

using gouache:

Gouache is equally suitable for more delicate, lyrical style of painting, in which washes of thin, semi-transparent color are build up in layers which dry with soft, Matt, velvety appearance.

With gouache colour, tone may be lightened either by adding white or by thinning the paint with water,depending on the effect you wish to achieve. Thinning with water gives gouache a semi-opaque, milky quality,while adding white gives dense,opaque covering

Answer 3

You could, but it would be a waste. Gouache is best on cold-press illustration board.