Yupo is a synthetic paper - 100% polypropylene. It is waterproof, stain-resistant and extremely strong and durable. It can be used as a stencil or outdoor signage once sealed. This extraordinary non-absorbent surface resists tearing and buckling and remains perfectly flat, eliminating the need for soaking, stretching or taping. Yupo paper is also ideal for offset printing, silkscreen, drawing with pencils, liquid pencil, inks, acrylic and watercolour painting.