Acrylic Painting Papers are an inexpensive solution for acrylic painting. Acrylic paper should be heavy weight to prevent warping, have a textured surface to assure adhesion, and have sizing to prevent absorption. The medium must adhere to the surface, but not be absorbed into the substrate. Use it for practice works, instruction, studies, and sketches. If longevity must be measured in generations, and not years, stretched canvas or hardboard panels would be more stable options.