Abstract: A seamless belt is fabricated by application of a coating to an endless substrate. The substrate is elastically stretched over a hollow cylindrical elongated support mandrel. The mandrel is formed of a porous material. Fluid is applied under pressure through the mandrel to form a layer of fluid between the outer surface of the mandrel and the inner surface of the substrate. The flow of fluid is manipulated to axially displace and to rotate the substrate on the outer surface of the mandrel. The flow of fluid is manipulated to orient a selected portion of the surface of the substrate to an angle to a direction of application of a coating. The temperature of fluid is manipulated to assist in substrate temperature control at steps of the coating and drying process.