White primer for oil or alkyd paint. Can be brushed onto glued canvas or hardwood, plywood, paper or metal. Warning: contains barium and lead dryers.
Priming your canvas by applying a layer or two of gesso to the surface will help the colours in your work really stand out. If the canvas is poorly primed when using oil colour, the oil may sink into the canvas, leaving dull patches on the surface of your painting. Priming also gives the canvas a smoother surface, allowing your brush to flow much better.