Pigment information is here Submitted by Allan on July 16, 2018 - 5:27pm Pigment information is here http://www.winsornewton.com/uk/discover/resources/composition-permanence But you have to click through on the product, eg http://www.winsornewton.com/uk/shop/water-colour/cotman-water-colours?co... Hope this helps. reply
Pigment information is here
http://www.winsornewton.com/uk/discover/resources/composition-permanence
But you have to click through on the product, eg
http://www.winsornewton.com/uk/shop/water-colour/cotman-water-colours?co...
Hope this helps.