Derivan Drying Retarder Medium slows the drying time of acrylic paint.
A small amount of the Drying Retarder can be added to an acrylic paint such as Matisse Structure formula to achieve a slightly more fluid colour that will stay wet for longer. The retarder can also be applied to paintings through the use of a fine mist spray bottle by simply spraying the area of the painting you wish to keep wet for longer.
