These strong art boards are pre-coated with gesso to provide a slick surface for painting. No preparation or treatment necessary. This ready to use, multi-purpose surface is ultra smooth. Ideal for use with a wide variety of techniques including: texture and rub out painting, drawing with pen & ink, chalk or pastels, painting with acrylics, oils, watercolors, gouache or egg tempura.Details:WhiteAvailable in multiple sizes0.125" (0.32 cm) profile Smooth faced primed Slight tooth finish to accommodate many techniquesFor use with oil and acrylic paintsAcid free