Nanoporous coated, clear transparent polyester film for the production of positive or negative film separations that can then be contact exposed to silk screens, pad or flexo plates. The HD version offers even higher ink absorption and faster drying times and an even greater UV density range with the optimisation of print settings. Images dry super fast due to a highly porous coating ensuring print speeds are further optimised. The film meets the highest demands with regard to image registration accuracy, dimensional stability.