Winsor & Newton Watercolour Blending Medium
Blending Medium slows the drying time of water colour to allow for more blending. It can be used in a number of different ways. For maximum blending time, mix the medium directly with water colour. Alternatively, you can apply the medium directly to the paper in preparation for the water colour. Dilution with water will produce a variety of blending/drying times. Drying rates will vary and depend on temperature and air flow. Any initial beading of colours will disperse as blending continues. Once dry, further washes can be applied over any washes which include Blending Medium.
