Liquitex - Acrylic Surface Prep - Super Heavy Gesso - 8 oz - Surface Preparations are used to seal, prime and add tooth (for color adhesion) to all surfaces such as canvas, wood, paper and metal. This same preparation is used for both acrylic and oil paint. Our professional gessoes usually take just 1 coat. Liquitex Super Heavy Gesso is an innovative, impasto, titanium white gesso having the ability to hold sculptural shape. Provides all the attributes of traditonal acrylic gesso. Ideal for thick and sculptural application with a knife or brush.