Master Quality Archival Stretched Canvas! Superb Performance And Color Retention! Exclusive OP Enhanced Oil Priming! As an oil painter, it is important to work on oil primed surfaces. First, oil on oil will provide the best chemical bond for the paint layers that go on, afterwards. Secondly, gesso are acrylic based, and either repel oil if they have too high of a resin base, or absorb the oil too much if it is too matte, making color sink and look dull and lifeless. Oil priming allows the color to sit cleanly and brightly on the surface, with refraction of the white from below.