Gamblin Galkyd Painting Medium is made from alkyd resin, the polymerized oil of the 20th century. The medium adds binder (increases adhesion) and speeds up drying. High viscosity alkyd resin was among the materials Jackson Pollock used to make his drip paintings. To make a similar mixture, use 60% Galkyd and 40% oil color. No more than 50% solvent by volume can be added to Galkyd without compromising its binder.