Type 511 consists of a vinyl-foil on one side coated with a natural rubber adhesive. It is an inexpensive alternative to type 510.
Type 511 is used as warning-tape to mark dangerous parts, machines, tools, buildings and places.
| Backing | LD-PVC-foil |
| Total thickness | 150 µ |
| Elongation at break | 70 % |
| Adhesion on steel | 2.8 N/cm |
| Tensile strength | 35 N/cm |
| Adhesive | natural rubber |
| Core diameter | 76 mm |
| Color | black/yellow |
| Width | 50 mm |
| Length | 33 m |