The Sealing Compound is produced from blends of refined hydrocarbon resins and plasticizing compounds reinforced with inert mineral filler, and contains no solvents, irritating fumes or obnoxious odours. The compound does not depend on oxidizing, evaporating, or chemical action for its adhesive or cohesive strength. It shall be supplied in extruded rope- form of suitable cross-section and of such sizes as to fill the joint space when the pipes are laid. The Sealing Compound is protected by a suitable removable two-piece wrapper: The two-piece wrapper is so designed that one- half may be removed longitudinally without disturbing the other half to facilitate application of the Sealing Compound.