Save hours of applying and sanding gesso with perfectly hand-crafted Ampersand Gessobord. The thick acrylic polymer gesso ground on this art board has been sanded to an exceptional finish you’ll love. Perfect for layering, glazing, alla prima and impasto in oils, acrylics, encaustics, alkyds or water-based oils. The surface is pH neutral and acid free. 2 Inch Deep Cradle.