Holbein Acrylic Gouache is a fast-drying, opaque acrylic based watercolor paint. Its water soluble while wet, and water-resistant, matte and opaque, even over dark surfaces. Great for grounds and layering. - Holbein Acrylic Gouache ? Titanium White, 150 ml tubeHolbein Acryla Designer Gouache, TITANIUM WHITE 150ML -