ACF has developed thier own canvas which is exclusivly made for Art Canvas Factory in SA. Currently we offer two types of durable, woven polyester canvases that are acid free. The 260 gsm canvas, featured in our Stretch Canvas range, is strong, flexible, and treated to repel water and stains while enhancing colors. The heavier 300 gsm canvas, used for our Box Canvas and other premium products. All our canvas ranges have a special gesso for oil painting, though it's great for other mediums too. You're welcome to add more gesso if you like!