For safe welding of PP plastics at a processing temperature of approx. 250 °C. For the professional hot air devices HG 2120 E, HG 2220 E, HG 2320 E, HG 2420 E, HG 2520 E and HG 2620 E, HG 2000 E, HG 2300 E and HG 2310 LCD as well as the hot air guns HL 2020 E and HL 1920 E , HL 2010 E and HL 1910 E.