First, let’s start with the pronunciation. It sounds like “gwash” and rhymes with squash.
Gouache is often described as opaque watercolor. While these two mediums have many similarities, gouache differs from watercolor in its quick dry-time and matte finish.
Janice Sung – Gouache on Strathmore 500 Series Ready Cut Watercolor, Cold Press
Goauche has a higher pigment content that is ground into larger particles than watercolor. This prevents it from granulating, causing opacity and a matte finish versus the translucent finish of watercolor. The bold, flat, poster-like finish makes it a versatile medium that is excellent for illustration, fine art and lettering.Below is a side-by-side comparison of artwork completed by Minnie Small in gouache (left) and watercolor (right).