A double cartridge was developed specifically for 2K adhesives. It is a container with 2 spatially separated chambers and is usually made of plastic. It is used to store liquids, pastes or adhesives and to dispense them in the correct mixing ratio. Equipped with a static mixer, it is possible to dose the contents of both chambers in exactly the mixing ratio, mix them and apply them precisely and evenly. Double cartridges are used with dispensing guns.