tesa® 4120 is a packaging tape based on a PVC-film backing and a natural rubber adhesive. tesa® 4120 can be used on manual and automatic sealing equipment. The natural rubber adhesive system offers very good adhesive properties to various surfaces tesa® 4120 tape is ideal for manual sealing equipment, though it can also be used with an automatic sealing machine. The tape is convenient to use, and unwinds smoothly, steadily, and quietly. Packaging and closing Sealing of medium-weight shipping boxes