Schmincke Aqua Fix Watercolour Medium
Aqua Fix can be mixed with watercolour paints instead of water or applied over a watercolour wash. It makes the surface waterproof and allows successive washes of colour that do not disturb one another and keep colours clean and vibrant.
Aqua Fix has a slightly milky appearance but dries clear. It can be painted over watercolour painted on canvas in order to preserve and protect the surface. As this product contains latex, brushes and palettes should be washed immediately after use.