Abstract: Apparatus for applying a foamed medium to a running workpiece has a tubular housing which is disposed in the interior of a rotary screen and forms part of a slotted squeegee whose outlet allows the foamed medium to flow from the interior of the housing against the internal surface of the screen. The outlet contains one or more deflectors in the form of shoulders, bars, rods or other types of obstacles which prevent the medium from flowing along a straight path from the opening or openings of the housing directly against the internal surface of the screen. This reduces the likelihood of non-uniform application of the medium to the workpiece.