GESSO SOLUTION BY DERIVAN Derivan Gesso is an ideal base coat or canvas, board, or paper primer. It delivers a robust white underlay that facilitates easy handling of paint. Derivan Gesso can be watered down as per your preference, being a water-based product. When used on canvas, it will tighten the fabric once dried, resulting in a taut platform for painting. You can apply Derivan Gesso over old acrylic artwork to provide an almost new surface to work upon. In cases where multiple layers are desired, a light sanding between coats is advised for a smooth outcome. Offered in 250ml, 500ml, 2 Litre, and 4 Litre sizes.