Fredrix Artist Series Watercolour Canvases are made from 100% archival cotton artist canvas: they combine the texture of a natural, woven fabric with a specially formulated gesso designed for all water-based paints. It will not tear like paper and you can lightly lift out pigment, or completely wash out your painting surface without damaging the canvas surface. Each canvas is double primed with an acid-free, absorbent, titanium gesso for professional results, and also, stretched on kiln-dried stretcher bars, with extra bracing on larger sizes for added support. A versatile option for watercolours, watercolour sticks, acrylics, inks, paint markers, permanent markers and spray paints. Tip: Ten minutes before you paint, wipe down (firmly) the entire surface of the canvas with a very wet cloth. This will allow for more spontaneous transfer of the paint to the canvas.