Saunders Waterford is an exquisite English watercolour paper, traditionally made on a cylinder mould machine. This is the superior quality paper made at St Cuthberts Mill and comes with the Royal Watercolour Society"s endorsement. Made using 100% cotton, the highest quality papermaking material, to archival standards. Each sheet is buffered with calcium carbonate to help defend finished pieces of work from discolouration caused by acids present in pollution. The paper has a creamy white colour and its attractive surface is created using natural woollen felts that give it a distinctive random texture. The surface is coated in gelatine making it strong and resilient to scrubbing and other rough treatments without the surface tearing. Saunders Waterford is a high quality professional watercolour paper. Each block is glued on all 4 edges, keeping the paper tight when you apply a wash. When using a block you do not need to go through the process of soaking and stretching the sheet as the block does this for you, and the paper dries flat. Blocks are excellent for painting on location. As well as watercolour, Saunders Waterford is suitable for pastel, gouche, acrylic, pencil, charcoal, pen & ink. This paper is 100% rag (cotton), gelatine tub sized and acid free. 20 sheets per block, 12x16in (31x41cm) NOT 300gsm (140lb).