Photo Rag Matt Baryta Paper from Hahnemuhle is a unique medium for pigment and dye-based inkjet printing. The paper itself has a natural white color, with no optical brighteners, and a barium sulphate coating yields immense color depth and detail. The heavyweight paper has a basis weight of 308 gsm, an opacity of 99%, and is acid-free, lignin-free, calcium carbonate buffered, and ISO 9706-compliant to suit archival printing applications and long-term exhibiting or storage.