Holbein - Acryla Gesso - 300ml - Raw Umber - Holbein Colored Gesso is one of the most versatile painting mediums available! It can be used for underpainting, as a medium that dries to an ultra-matte finish, or it can simply be used as acrylic paint! Acryla Gesso accepts a wide variety of surfaces. Holbein Colored Gesso is highly pigmented, with an extremely smooth texture. It can be mixed with any acrylic paint or medium. It may be overpainted with water-based or oil-based colors or pastels. Available in a multitude of colors.