Winsor & Newton Professional Watercolour Paper
: 640 gsm is perfect for creating cyanotypes that can be hand finished with watercolour. The paper holds up well to the cyanotype photographic process because it can be washed in water repeatedly without cockling. A cyanotype leaves a negative image with a bright blue background on the surface of treated paper. This negative white area can then be finished by hand with watercolour; here we used colours from our cadmium-free range.