This stretched cotton canvas is made from 240ml cotton duck, a heavier weight, superior quality cloth with medium grain surface. Triple coated with acid free sizing and two coats of highly pigmented acrylic primer, its balanced absorbency and tooth prevents sinking of oil colours and improves adhesion. Its frame has been specially constructed with kiln fired, bevelled stretcher bars, and the canvas has been stretched by hand for best tension and tailored corners. The canvas is stapled on the back. The Artists. Canvas is ideal for use with oil (including water mixable), acrylic, and alkyd colour, and for all techniques, including heavy paint applications. Canvases are 1.9cm . deep. Canvases 46cm . x 60cm . through 60cm . x 90cm . have one additional support bar. Canvases 70cm . x 90cm , through 80cm . x 120cm . have two additional support bars. Canvases 90cm . x 120cm . and larger have three additional support bars.