Hahnemuhle Platinum Rag is an uncoated fine art paper. It is designed to meet the highest quality requirements for platinum printing and any other non-traditional photographic printing processes like Palladium, Van Dyke, Cyanotype and Salt Prints. The natural bright white paper with a weight of 300 gsm is made of 100% cotton fibres. It is acid free and does not contain any alkaline buffering. Along with the optimised sizing, the paper allows for easy coating and clearing.

Hahnemuhle Platinum Rag excels with a beautiful tonal range and very deep blacks. The smooth, slightly textured surface lends the paper a pleasant feel-to-the-touch. Both sides have a very good print quality without any noticeable difference while printing both the front and the back.

for details, specs & description on manufacturers site.