The artworks are essentially watercolour on cotton rag acid free paper of either 220 or 300 gsm weight. Water soluble graphite is used in most and other medium.
In 2018, I did a six months research on paper grounds with a grant from Queensland Art. I use the paper ground as a primer and create an abstract gestural coating before starting to paint.
Paper ground is used in many different ways in paintings by oil and acrylic painters. To my knowledge I am the only one using it as an abstract coating for watercolour.
Life expectancy of watercolour as a medium is equal to oil paint as it is pure pigment as opposed to acrylic. The life span of paper as support has been established by archaeologists who have found some parchment in Ancient Mesopotamia, Egypt. The durability of art on paper and the paper itself is equal to an equal quality canvas.