The practice-oriented training is aimed at application engineers, installers, site managers and planners and contractors interested in practical applications. In civil engineering, such as tunnel and landfill construction, the quality of the sealing system is a priority. This is because leaks have fatal consequences. It is therefore crucial that the quality of workmanship meets the highest standards. The quality of the weld seam depends to a large extent on the welding machine, but also on the user. The training enables the user to exploit the full potential of the devices and machines.