This machine-made, synthetic heavy-weight paper offers a unique alternative to traditional art papers. Originally used for offset printing, this paper also accommodates silkscreen, embossing, pen and ink, drawing, acrylic painting and aqueous techniques. It is exceptionally strong, durable and will not buckle or tear. It is acid-free, archival and has a smooth, bright white surface. As a watercolor paper, it has the advantage of being non-absorbent so colors lie on top of its surface producing brilliant, vibrant effects. Colors retain their true clarity and brilliance. Yupo requires no soaking, stretching, or taping flat. Best of all, it allows you to wipe off unwanted sections of your painting and start again with a fresh surface.Made in the USA. 100% polypropylene. Waterproof and stain-resistant