Take your art outside with Masterpiece Ventura Hardcore Pro Canvas Panels. The 7 oz pre-primed Belgian linen panels are double-sized with PVA and double-primed with alkyd oil to create a fine surface perfect for painting in oils and alkyds. They have an 11.3 oz primed weight. Ventura panels have engineered-wood rigid-core boards and are mounted with a pH-neutral permanent adhesive to durable vinyl backing. This process stabilizes the panel to keep it flat and provide an impenetrable moisture barrier. The panels are archival, acid-free, and pH-balanced. 1/8" thick.