Pre-Stretched Canvas by Centurion. Details:Master Quality Archival Deluxe Linen Panels! Superb Performance And Color Retention! Exclusive OP Enhanced Oil Priming. Gesso is absorbent even if it is plate smooth. The Paint does not get absorbed as much and sits on the Surface more making it easy to blend and manipulate. You can get around this by using an under-Painting oil ground on top of the Surface of a universal ground Canvas but this is very time consuming and expensive. Unlike universal ground, our oil Priming chemicAlly bonds with the oil Paint and is non-absorbent Allowing the Paint to sit up on the Surface with the correct refraction Quality of the oil binder.