FIELD: erection and repair of pipe lines. SUBSTANCE: device for application of mastic includes circular split bath, tray and pump unit for delivery of mastic from accumulating reservoir. All members of mastic motion loop - reservoir, bath, tray and pump with delivery hose are provided with mastic heat setting system. After placing the machine on pipe line, flow rate of mastic is set in accordance with speed of motion of machine. Wetting of outer surface of pipe line is effected in bath, after which wrapping tape is wound on pipe line. EFFECT: improved quality and enhanced reliability. 3 cl, 1 dwg
