The machine makes it possible to process windows with any number of panes. Right-angled windows as well as acute-angled windows, round arch windows and other geometrics can be sealed in one machine, if data for the sealing of window elements is present. The floating application head is very well suited to compensating for changes in the profile. By means of an integrated turning gear, the application head is turned at the corners during the silicone application, and thus it can then process the next edge of the window. Up to six different colours can be processed. The exchange between the single silicone colours takes place automatically in a one-window cycle. The different silicone colours are permanently and simultaneously fed through the injection head via several hose lines.