A paste application device stores two starting components, for mixing the starting components to form a paste and for the application of the paste. The comprises a two-component cartridge comprising two cylindrical internal spaces, two feed plungers that can be shifted axially in the internal spaces and limit the internal spaces on a first side of the two-component cartridge, and at least two dispensing openings by means of which the internal spaces are open on a second side of the two-component cartridge that is opposite from the first side, a hollow cylinder that is made of a plastic material and has one front face that is open and one front face that is partially closed, in which is situated an axially mobile plunger that has two pestles attached to it, whereby the pestles are oriented in the direction of the open front face, whereby the open front face of the hollow cylinder is arranged to axially touch against the first side of the two-component cartridge, and whereby the plunger closes in gas-tight manner against the internal walls of the hollow cylinder, whereby the two-component cartridge and the hollow cylinder are arranged in a pressure vessel, whereby the pressure vessel touches against the hollow cylinder or is situated at a distance from the hollow cylinder of at most 0.1 mm.