gesso and often richly painted in tempera technique. Finally, the surface was sealed with a transparent varnish. While the gessoed canvas was a perfect painting surface, the primary purpose of the canvas application may have been the strengthening of the wooden shield corpus in a manner similar to modern glass-reinforced plastic. Splined canvas, stretched canvas and canvas boards Splined canvases differ from traditional side-stapled canvas in that canvas is attached with a spline at the rear of the frame. This allows the artist to incorporate painted edges into the artwork itself without staples at the sides, and the artwork can be displayed without a frame. Splined canvas can be restretched by adjusting the spline. Stapled canvases stay stretched tighter over a longer period of time, but are more difficult to re-stretch when the need arises. Canvas boards are made of canvas stretched over and glued to a cardboard backing, and sealed on the backside. The canvas is typically linen primed for a certain type of paint. They are primarily used by artists for quick studies. Types Dyed canvas Fire-proof canvas Printed canvas Stripe canvas Water-resistant canvas Waterproof canvas Waxed canvas Rolled canvas Products Wood-and-canvas canoes (see photo of canvas being stretched on a canoe) Bags, including coated canvas (e.g. Goyard) Covers and tarpaulins Shoes (e.g. Converse, Vans, Keds) Tents Martial arts uniforms (e.g. Tokaido, Shureido, Judogi) Canvas Prints Wrestling canvas, used in WWE and other Sports Entertainment promotions See also Canvas print Eisengarn Marine canvas Plastic canvas Salembaree References Gordon, Dillian, National Gallery Catalogues (new series): The Fifteenth Century Italian Paintings, Volume 1, 2003, External links Woven fabrics Painting materials Maritime culture es:Lona it:Interfodera pl:Płótno pt:Tela