Premium 100% Cotton Watercolor Paper At An Affordable Price. New York Central’s Watercolor Paper is made on a slowly rotating cylinder mould. The machine evenly distributes long cotton fibers to make each durable sheet. Internal gelatin sizing prevents paint bleed-through and preserves color vibrancy. Each sheet is 100% Cotton and has a balanced grain that softens as a unit when wet. The paper can withstand a multitude of techniques, including wet color blending, paper scratching, and scrubbing.