Abstract: The present invention relates to a method for producing a unidirectional tape with a surface polymer layer, the method comprising the steps of a) providing an impregnation slurry comprising particles of a polymer, water, optionally a surfactant, optionally an organic carrying medium, optionally organic compounds and optionally surface active compounds, and providing a pressing tool having a surface profile structure, the surface profile structure having a surface roughness Ra of 1 to 20 ?m, preferably of 2 to 10 ?m, more preferably 3 to 7 ?m, b) impregnating a unidirectional fiber layer comprising unidirectional fibers with the impregnation slurry to obtain an impregnated unidirectional fiber layer comprising the particles of the polymer, c) pressing at a surface of the impregnated unidirectional fiber layer with the surface profile structure to move at least some of the particles of the polymer within the impregnated unidirectional fiber layer onto the surface to form a surface polymer layer on the unidirect