The invention relates to a power transmission belt, having a base made of polyurethane (30) and a textile overlay (1) and comprising a first coating of a first thermoplastic material (22′) on the surface (11) of the textile overlay (1), which first coating forms an impregnation, has a melting temperature from 80° C. to approximately 145° C., and penetrates at least partially into the textile, and comprising a second coating (26) of a second thermoplastic material on the first coating, which second coating has a higher melting point. The coatings can be applied successively to the textile overlay (1) before the casting of the polyurethane or can be overlaid as individual films or as multi-layer film and applied to the textile overlay by heat and pressure. The coating acts to reduce abrasion and prevents the through passage of the belt polyurethane.