Abstract: This invention involves the method and apparatus for simultaneously placing a coating of a selected material on the outer surface of an extended cylindrical object such as a pipe or conduit, and holding the coating in position by wrapping the coating with a strip of thin film formed to a cylindrical contour and sealed with a longitudinal seam. This is accomplished in one mode by inserting the pipe through a tubular concentric mandrel, wrapping and sealing the plastic film against the mandrel and injecting the coating material through the annular space between the pipe and the mandrel and thus into the space between the pipe and the sealed plastic film. Using heat shrinkable plastic the film forms a tightly fitting cover for the pipe coating material.