Dries to a velvet matte opaque finish that has no color shift- what you see when wet is what it looks like dry. Acrylic Gouache Binder Holbein Artists Gouache Smalt Blue 15ml (A Gouache Holbein Compatible with any water-soluble media Compatible with all other water-soluble media, and is water resistant. Painting with Acryla Gouache (Holbein) - Marloes De Vries (visual artist and writer Dries to a velvet matte finish with no shifting in color tone Holbein Acrylic Gouache is made with pure water-soluble acrylic resin- resulting in a highly pigmented, brilliant color range. This paint moves, reacts, blends, and feels like traditional gum arabic gouache, but doesn't have the same fragile surface.