Artists' Quality Stretched Canvas-30"X40" WINSOR & NEWTON-Artists' Canvas Board This professional quality canvas is great for use with oil (including water mixable), acrylic and alkyd color The 11oz unbleached cotton canvas has a medium grain surface that is ideal for all techniques including heavier applications of color It is triple coated using acid-free sizing and two coats highly pigmented primer Balanced absorbency and tooth prevents sinking of oil colors and improves adhesion