The transparent primer allows water-colour painting on grease-free surfaces such as canvas, painting boards, wood as well as on acrylic paintings in which the surface remains visible - in comparison to the existing white water-colour ground, fine - and provides for especially creative options. The water-colour ground, transparent forms an even, matt, elastic and age resistant film. Can be overpainted (or tinted beforehand) with water-colours, gouache or acrylic colours.