DISCS are used to mount the membrane to the tunnel’s wall. Once the discs have been attached to the wall, the waterproof membrane is welded (glued) to the discs by using special hot air blowers. The discs must be welded with a special heating gun. The distance between them must be about 70-80 cm when you install them. The whole surface of the discs must be welded to the PVC sheet to ensure greater watertightness in the event of pressure from standing water.
| Type | Color | Package |
|---|---|---|
| RD 80 PVC | Black | 500 pcs. |
| RD 80 PE | White | 500 pcs. |
