Under fill material means all materials that are used in the packaging of goods for filling cavities. Filling material is thus a part of the packaging, which is necessary when shipping products. The filling of cavities of a package protects the goods against slipping and cushions shocks. The nature of the filler material may be very different from application to application. One example differs Loose fill materials (eg polystyrene beads) of compact filling material (eg karopack cushions). Every company should pay attention to good packaging and good cushioning material, as it represents the foundation of a secure dispatch.