Liquitex Slow-Dri Blending Fluid is uniquely formulated for superior surface blending with acrylic colours. Without jeopardizing the paint strength, Liquitex Slow-Dri Blending Fluid increases the "open" working time of the paint. Flexible and non-yellowing, Liquitex Slow-Dri Blending Fluid is water-resistant and clear when dry. Ideal for softer edges & modelled forms.