Abstract: Apparatus for manufacturing cylindrical tubes from paper or similar fibrous materials. A layer of plastics material which becomes tacky when heated provided on a paper web is heated through the paper web then pressed against a plastics foil web with one edge of the plastics foil web extending beyond the corresponding edge of the paper web. The joined webs are wound helically onto a mandril with the extended edge of the plastics foil web overlapping a corresponding opposite second edge of the plastics foil web. A string of molten adhesive is applied along the extended edge on the mandril. The mandril is cooled to maintain the foil layer nearest the mandril below its melting temperature.