Old paint and adhesive residues are thus dissolved without the use of chemicals. At a temperature of 500 to 600°C it is even possible to dissolve several layers simultaneously. This method is particularly suitable for oil-based paints and synthetic resin paints. The window kit on old windows can also be removed with a little practice by using hot air. It is advisable to wear a breathing mask during this work because harmful vapours can escape from the old materials. To facilitate the scraping of paint, varnish, kit and adhesive, Leister offers a special scraper nozzle for the ELECTRON ST hot air blower.