Masterpiece Sausalito Hardcore Pro Canvas Panel Packs are perfect for plein air painters who love a heavyweight, textured surface. The 11.5 oz pre-primed cotton panels are sized and double-primed with acrylic for a 14.5 oz primed weight. The 1/8" thick panels have an engineered-wood rigid-core board that's ideal for art panels. The canvas is mounted with a pH-neutral permanent adhesive to durable vinyl backing that stabilizes the panels to prevent warping and provide an impenetrable moisture barrier. Archival, acid-free, and pH-balanced, Sausalito panels are ideal for oils, acrylics, and alkyds. Packs of 5.