The Schmincke Transparent Watercolour Ground allows watercolour painting on grease-free surfaces such as canvas, painting boards, wood as well as on acrylic paintings in which the surface remains visible. The watercolour absorbent ground forms an even, matt, elastic and age resistant film. Can be overpainted (or tinted beforehand) with watercolours, gouache or acrylic colours. Also available in a 500ml bottle