Prima Art Basics Heavy Gesso 2oz Prima Marketing Finnabair Art Basics Heavy Gesso - Black or White 2.OZ, opaque, matte, ground acrylic. Works well as a primer on most surfaces: including canvas, wood, paper, metal, chipboard, fabric, plastic, etc. Dries quickly. Works well for a variety of color products providing a smooth, non yellowing, chalky background. Gesso is water based, but permanent and flexible after drying. Will mix with pigments, or acrylic paints, to create a range of customized, colored grounds. Apply with a paintbrush or palette knife. Non toxic. Archival Safe.