This White Gesso Oil Primer from Bob Ross is an acrylic primer that is ideal for a dry canvas when you want to start a new masterpiece. It\'s non-toxic and forms the perfect base for the application of liquid base coats. This Bob Ross gesso is water based meaning once it\'s applied it will dry quickly and when it comes to cleaning you can remove with relative ease. When applying it is best done with foam rollers or cloth but not brushes as it can get stuck in their bristles. Before applying and painting with oils make sure your gesso has completely dried on the canvas leaving the surface ready to use. These Bob Ross gessos are available in White, Grey and Black giving you an array of options when starting off your base. - Brand: Bob Ross - Colour: White Gesso - Size: 473ml - Ideal for preparing a canvas for painting mediums such as acrylics or oils - Water based - Quick drying - Non-toxic