Fredrix Pro Series Archival Belgian Linen Canvas Boards are a professional grade, archival painting surface with medium texture linen mounted with proprietary acid-free adhesive on an acid-free MDF board ensuring they will stand the test of time. Pro Series canvas is double-primed with an acid-free acrylic titanium gesso for professional results - a versatile option for oils, acrylics, water soluble oils, enamels, paint markers, permanent markers, spray paints and alkyds.