PaintOn is extra heavyweight (250g) professional quality mixed media paper produced in our 400 year old Dutch mill. It's perfect for both wet and dry media and well adapted for watercolor, light acrylic and paint washes, as well as pen & ink, pencil, pastel, collage medium, etc. PaintOn has been double-sized, meaning it is treated at the core and on the surface, for excellent wet-strength. It will resist buckling and warping with liquid media. This is a truly exceptional mixed media paper!