Very fast-reacting, foam-foaming, two-component polyurethane resin with short reaction time even at low temperatures.

For sealing and solidifying in dry and highly water-bearing areas, reliably seals pressure-bearing water inflows from rock, soil or structures, closes cracks and fissures in the rock and prevents waterflow along the tunnel axis for a long time.

By adding WILLADD® FAST (accelerator) or WILLADD® THIX (thixotropic agent) the system can be adapted to the on-site requirements.