This Water Mixable Oil Colour Painting Medium makes the paint become smoother and fatter. This allows the paint to be smeared out easily and the brush stroke to become less distinct. Adding the medium does not affect the drying time but does increase the degree of sheen and the durability of the paint film. Mix the medium with water and it can be applied in the layered painting technique. Fantastic to use with glow in the dark products. Based on vegetable oil, synthetic resin, and water. Packaged in jars.