Arches Watercolour is an acid free, 100% cotton paper which lends the product resistance, stability and a characteristic feel. Surface sized inside and dry on the surface, the colours are rendered beautifully even after scratching and gumming. Its natural dye and antifungal protection ensures its excellent permanence. Suitable for watercolours, acrylic, ink and calligraphy. Four deckled edges and a preregistered watermark.