Winsor Newton WC Sheets Winsor & Newton Artists Watercolour Paper was developed to the highest specifications of Winsor & Newton in the early 1980s. Each sheet of fine art paper is brilliant white, acid-free, 100% cotton, buffered and mould made with four deckled edges. Winsor Newton watercolor paper is available in cold pressed, hot pressed and rough surfaces and weights of 140lb. or 300lb.. In addition to the internal sizing, the gelatine surface sizing produces unsurpassed brilliance from the watercolor paint that is applied to it. Winsor Newton Artists Watercolour paper is supplied in Imperial size (22" x 30") sheets. Include Winsor & Newton watercolor paper in your art supply collection today.