The third generations moulding methods use unbounded aggregate; the grains are kept in a compact form owing to the physical bonds (magnetic field, vacuum, overpressure of gases and low temperature). The aggregate compaction is replaced by vibration. After the physical bonds between the aggregate grains are broken, the mould immediately disintegrates, so that the casting does not have to be laboriously knocked out, and the moulding composition is immediately usable for production of another mould just after cooling. Less aggregate is needed in the system, and the direct recycling of the aggregate is an ecological advantage. The use of an unbounded moulding aggregate eliminates the cost of binder, which is particularly valuable in the case of the large castings requiring only a modest production rate. No emissions are produced in both, the aggregate preparation and mould manufacture, or during the mould casting.The beginning of the Third Generation moulding methods began with the development of the Magnetic Moulding Process. The following three moulding processes have then been introduced: Vacuum Moulding Process, Eff-Set Process (ice binder) and the Lost Foam Process.